Color Details and Palettes for #2B4E4D

Details about the color Dark Slate Gray

Closest web-safe match: #336666

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 #2B4E4D
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About Color Hex #2b4e4d

The color Dark Slate Gray, with hexadecimal code #2b4e4d, is categorized under the cyan family—a cool, refreshing hue fundamental to CMYK printing. Cyan evokes clarity, focus, and digital innovation, appearing across tech interfaces and futuristic design systems. Additionally, it evokes emotions such as Trust, Peace, Loyalty, Integrity and Tranquility. Cyan or blue-green is associated with healing, water, and tranquility. It can symbolize communication and clarity in various cultures. At just 29% saturation, this near-neutral shade carries only a subtle hint of its underlying hue, making it versatile for large surfaces and professional contexts. Its low lightness of 24% produces a deep, rich appearance—conveying gravity and luxury, particularly effective in dark-mode designs and premium packaging. This color is ideal for designs that aim to express Trust, Peace, Loyalty, Integrity, or Tranquility. It can be effectively used in web design, branding, and marketing materials to attract attention and convey specific messages.

The RGB values for Dark Slate Gray are (43, 78, 77), providing a combination of red: 43, green: 78, and blue: 77. In HSL format, it has a hue of 178.00°, saturation of 29.00%, and lightness of 24.00%.

The HSV representation includes a hue of 178.00°, saturation of 45.00%, and value of 31.00%. Its CMYK composition is cyan: 45.00%, magenta: 0.00%, yellow: 1.00%, and black: 69.00%.

The calculated luminance of #2b4e4d is 0.065, offering a brightness level suitable for various design requirements.

This color is not part of the web-safe color palette. The closest web-safe color to this is the color HEX #336666. Its contrast ratio is 2.30:1 against black and 9.13:1 against white. It works well on light backgrounds but may be challenging on darker ones.

In terms of color temperature, #2b4e4d reads as cool. When it comes to accessibility, testing against standard guidelines suggests that using white text meets typical WCAG contrast standards. Additionally, the ideal foreground color for improved legibility on #2b4e4d is white.

Considering its saturation and lightness, #2b4e4d appears more vivid and energetic, making it stand out in designs that aim to capture attention.

History, Usage, Psychology & Design Ideas for #2B4E4D

Dark Slate Gray (#2B4E4D) belongs to the Cyan color family.

With a dusty, low-saturation character, this color offers quiet complexity—neither bold nor faded. Dusty tones add vintage charm to retro-inspired designs and pair beautifully with metallic accents like copper or brass.

Historical Background

Cyan is one of the four foundational inks in CMYK printing, making it literally indispensable to modern publishing. The name derives from the Greek kyanos, meaning 'dark blue,' though the color we call cyan today is distinctly lighter. Ancient Egyptian blue—one of the earliest synthetic pigments (c. 2200 BC)—was close to cyan and used extensively in tomb paintings and pottery across the Nile Valley.

Design & Usage Tips

Cyan projects a high-tech, digital-forward identity and pairs naturally with white for clean interfaces or with magenta for vibrant contrast. It works well for SaaS products, data-visualization tools, and creative agencies. Use cyan sparingly on warm-toned palettes, as it can feel cold in those contexts.

Sitting on the cool side of the spectrum (hue 178°), it promotes a feeling of calm distance and intellectual clarity, which is why cool hues dominate corporate identities, healthcare design, and productivity tools. At 29% saturation, the color has a muted, sophisticated quality that pairs well with bolder accents. It works as a background, a border, or a secondary element in layered compositions.

Psychological Impact

Cyan stimulates mental clarity, focus, and communication. It feels refreshing—like a splash of cool water—making it ideal for apps and services centered on productivity, learning, or wellness. Cyan also carries associations with futurism and digital innovation.

Its low lightness of 24% gives it a deep, intense presence. Deep tones like this excel as dark-mode backgrounds, header bars, and anywhere a sense of gravity or luxury is desired.

Creative Design Ideas

Build a dark-mode interface with cyan accent elements (buttons, links, progress indicators) on a charcoal background for a sleek developer-tool aesthetic. Use cyan-to-blue gradients in header sections for SaaS landing pages. In print, spot-color cyan on uncoated paper stock creates a tactile, modern feel.

#2B4E4D Color Conversions

Every way to write Dark Slate Gray — copy Dark Slate Gray as RGB, HSL, HSV, HWB, CMYK, OKLCH, OKLab, CIELAB, LCH, XYZ or a decimal integer. One-tap copy on every format; tap on any card to learn what it is and when to use it.

12 formats
HEX Web
#2B4E4D

Hexadecimal is the web’s universal color notation — two digits each for red, green and blue. Drop it straight into HTML, CSS or any design tool.

RGB Screen
rgb(43, 78, 77)

RGB is the additive Red-Green-Blue model every screen uses to emit light. The default choice for websites, apps and on-screen UI.

HSL Web
hsl(178, 29%, 24%)

HSL breaks a color into Hue, Saturation and Lightness — the most intuitive way to lighten, darken or mute a color in CSS.

HSV HSB Design
hsv(178, 45%, 31%)

HSV (also called HSB) maps Hue, Saturation and Value/Brightness. It is the model behind the color pickers in Photoshop, Figma and most design apps.

HWB CSS 4
hwb(178 17% 69%)

HWB blends a pure hue with Whiteness and Blackness — a painter-friendly model added in CSS Color 4 for quick tints and shades.

CMYK Print
cmyk(45%, 0%, 1%, 69%)

CMYK is the subtractive Cyan-Magenta-Yellow-Black ink model. Use these values when preparing artwork for a printer or commercial press.

OKLCH Modern
oklch(39.72% 0.041 193.28)

OKLCH is a modern, perceptually-uniform space (Lightness, Chroma, Hue). It powers smooth gradients and accessible palettes in today’s CSS.

OKLab Modern
oklab(39.72% -0.040 -0.009)

OKLab is the Cartesian form of OKLCH — ideal for blending and interpolating colors without the muddy midpoints older spaces produce.

CIELAB L*a*b* Perceptual
L: 30.64, a: -12.92, b: -3.39

CIELAB is a device-independent, perceptually-uniform space. It is the standard for measuring color difference (ΔE) and matching across devices.

LCH Perceptual
L: 30.64, C: 13.36, H: 194.70

LCH is CIELAB in cylindrical form — Lightness, Chroma and Hue — letting you adjust vividness and hue while staying perceptually even.

XYZ CIE Science
X: 5.06, Y: 6.50, Z: 8.01

CIE XYZ is the 1931 master space that underpins every other model here — the scientific bridge used to convert between color systems.

Decimal int Code
2838093

The 24-bit integer value of the color — handy for databases, APIs, game engines and low-level graphics code.

RGB Color Percentages for #2b4e4d

RGB Color Percentages for Dark Slate Gray (HEX Code: #2b4e4d) display the relative contribution of Red, Green, and Blue in forming the color. Understanding these percentages provides insight into the color's visual balance and primary components.

This color is primarily dominated by Green, making up 39.39% of the total composition. The complete breakdown of RGB contributions is:

Red:
21.72%
Green:
39.39%
Blue:
38.89%

This analysis highlights the influence of each primary color, offering a deeper understanding of the visual characteristics of Dark Slate Gray.

CMYK Ink Levels & Print Guide for #2b4e4d

CMYK Ink Levels for Dark Slate Gray (HEX Code: #2b4e4d) provide a breakdown of the percentages of Cyan, Magenta, Yellow, and Black inks needed for accurate print reproduction. The composition of Dark Slate Gray prominently features Key, reflecting its dominant color characteristic. This information is invaluable for optimizing ink usage and achieving precise color results in printed materials.

The exact CMYK values are: Cyan: 44.87%, Magenta: 0%, Yellow: 1.28%, and Black: 69.41%.

Luminance & Contrast for #2B4E4D

Relative luminance gauges how bright Dark Slate Gray is, while the WCAG contrast ratios show how legible black or white text is on it — and which accessibility levels (AA / AAA) it passes.

Relative luminance 0.065
0 · dark1 · light
Aa
Black text 2.30:1
AA AAA Large
Aa
White text 9.13:1
AA AAA Large

Quick CSS Snippets for #2B4E4D

Copy-and-paste CSS for Dark Slate Gray — backgrounds, text, borders and a custom property. Each line is ready to drop into your stylesheet.

Background background-color: #2B4E4D;
Text color: #2B4E4D;
Border border: 2px solid #2B4E4D;
RGB background-color: rgb(43, 78, 77);
HSL background-color: hsl(178, 29%, 24%);
Variable --color: #2B4E4D;

#2b4e4d Monochrome Palette

The Monochrome Palette consists of shades created by adjusting the brightness. These include lighter, original, and darker shades of the color. This layout helps to visualize the color's range and its potential use in design.

#eaeded
#cad3d3
#aab8b8
#8a9e9d
#6b8382
#4b6968
#2b4e4d Original
#254241
#1e3736
#182b2a
#111f1f
#0b1413
#040808

#2b4e4d Complementary Palette

The Complementary Palette is made up of two colors that sit opposite each other on the color wheel. These colors create high contrast and vibrant designs, making them perfect for attention-grabbing elements and dynamic visuals.

#2b4e4d Original
#4f2b2d

#2b4e4d Analogic Palette

The Analogic Palette consists of colors that are next to each other on the color wheel. These colors typically create harmonious and subtle designs, often used to evoke calmness and unity in your visual projects.

#2b4e4d Original
#2b3e4f
#2b4f3c
#2b2d4f
#2d4f2b
#3c2b4f
#3e4f2b

#2b4e4d Triadic Palette

The Triadic Palette is made up of three colors evenly spaced on the color wheel. This combination provides a vibrant and balanced color scheme, often used for dynamic and energetic designs while maintaining harmony.

#2b4e4d Original
#4e2b4f
#4f4e2b

#2b4e4d Quad Palette

The Quad Palette, also known as tetradic, consists of four colors evenly spaced on the color wheel. This combination offers a diverse and bold color scheme, ideal for creating rich, complex designs with multiple accents while still maintaining balance.

#2b4e4d Original
#3c2b4f
#4f2b2d
#3e4f2b

Color Blindness Simulation for #2b4e4d

Colors are perceived differently by individuals with various forms of color blindness. Use the dropdown below to see how this color may look through the eyes of someone with color vision deficiency. Explore how Dark Slate Gray (#2b4e4d) might appear to people with different visual experiences, and gain deeper insights into color accessibility for your designs!

Each color box displays a "Friendly" or "Not Friendly" tag in the bottom-right corner. A "Friendly" tag indicates that the color difference is distinguishable to individuals with the specific type of color blindness. Conversely, a "Not Friendly" tag means that the color difference might not be distinguishable, potentially causing accessibility issues in your design.

Normal Vision

Deuteranopia (Green Weakness)

Friendly

Protanopia (Red Weakness)

Friendly

Tritanopia (Blue-Yellow Weakness)

Friendly

Achromatopsia (Total Color Blindness)

Friendly

Color Harmonies for #2b4e4d

Color harmonies refer to the visually pleasing combinations of colors that are derived from specific relationships on the color wheel. These harmonious schemes, such as complementary, triadic, and analogous colors, create a balanced and engaging visual experience in design.

Complementary

Analogous

Triadic

Tetradic (Quad)

#2B4E4D Nearby Colors

A handful of colors just a step away from #2B4E4D — each one nudges the brightness, richness, or shade a little while still feeling like the same color. Use the buttons on any swatch to copy its hex or open its full color page.

#335555 Dark Slate Gray
#224444 Emerald Forest
#446666 Rosemary
#113333 Elite Teal
#005555 Cape Verde
#444444 Black Panther
#225555 Enchanting Ivy
#335544 Plantation

Colors Similar to #2b4e4d

These colors are close neighbours of #2B4E4D in the RGB color space. Each subtle variation can produce a noticeably different mood in your design while remaining harmonious with the original Cyan tone.

#2c4e4d Dark Slate Gray
#2b4f4d Dark Slate Gray
#2b4e4e Dark Slate Gray
#2a4e4d Dark Slate Gray
#2b4d4d Dark Slate Gray
#2b4e4c Dark Slate Gray
#3c4e4d Night Watch
#2b5f4d Evergreen
#2b4e5e Shadow of Night
#1a4e4d Tropical Forest
#2b3d4d Depths of the Nile
#2b4e3c Pine Needle

Looking for more Cyan shades? Browse Cyan colors →

Explore Vibrant Images Featuring Dark Slate Gray (#2b4e4d)

Discover a vibrant gallery of images that not only showcase the captivating hue of Dark Slate Gray, but also embody its unique mood and personality. Each carefully curated photo is selected to highlight the richness and diversity of this color, offering inspiration for design, art, and creative projects.