Color Details and Palettes for #5A5C66

Details about the color Concrete Landscape

Closest web-safe match: #666666

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 #5A5C66
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About Color Hex #5a5c66

The color Concrete Landscape, with hexadecimal code #5a5c66, belongs to the charcoal family—a deep, warm neutral softer than black. Charcoal tones lend authority and understated elegance to any composition. Additionally, it evokes emotions such as Trust, Peace, Loyalty, Integrity and Tranquility. With negligible saturation (6%), this color is effectively achromatic—a pure neutral that pairs with any hue without competition. Its low lightness of 38% 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 Concrete Landscape are (90, 92, 102), providing a combination of red: 90, green: 92, and blue: 102. In HSL format, it has a hue of 230.00°, saturation of 6.00%, and lightness of 38.00%.

The HSV representation includes a hue of 230.00°, saturation of 12.00%, and value of 40.00%. Its CMYK composition is cyan: 12.00%, magenta: 10.00%, yellow: 0.00%, and black: 60.00%.

The calculated luminance of #5a5c66 is 0.108, 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 #666666. Its contrast ratio is 3.16:1 against black and 6.65:1 against white. It works well on light backgrounds but may be challenging on darker ones.

In terms of color temperature, #5a5c66 reads as neutral. 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 #5a5c66 is white.

Considering its saturation and lightness, #5a5c66 appears more vivid and energetic, making it stand out in designs that aim to capture attention.

History, Usage, Psychology & Design Ideas for #5A5C66

Concrete Landscape (#5A5C66) belongs to the Charcoal color family.

As an achromatic shade, this color carries a timeless, versatile neutrality that anchors any palette it joins.

Historical Background

Charcoal, the drawing medium, has been used since prehistoric cave art at Lascaux and Altamira—making it one of humanity's oldest creative tools. As a color, deep charcoal became fashionable in Victorian-era menswear and later in mid-century modern furniture upholstery, where it provided a softer alternative to stark black.

Design & Usage Tips

Charcoal is an excellent substitute for pure black in typography and backgrounds—it feels warmer and reduces eye strain on screens. Dark-mode interfaces frequently use charcoal (#222–#333) rather than true black (#000) to avoid OLED screen smearing and to soften contrast.

Psychological Impact

Charcoal communicates authority and gravitas without the starkness of black. It suggests understated confidence, making it ideal for luxury brands, law firms, and editorial publications that want sophistication without drama.

With a mid-range lightness of 38%, this tone is highly versatile: dark enough to serve as body text on white, yet light enough to stand out on charcoal or navy backgrounds.

Creative Design Ideas

Use charcoal as a dark-mode background paired with crisp white text and a single vivid accent (electric blue, lime green, or coral). For print, charcoal paper stock with metallic foil stamping creates tactile, premium business cards and invitations.

#5A5C66 Color Conversions

Every way to write Concrete Landscape — copy Concrete Landscape 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
#5A5C66

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(90, 92, 102)

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(230, 6%, 38%)

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(230, 12%, 40%)

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(230 35% 60%)

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(12%, 10%, 0%, 60%)

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(47.65% 0.016 276.77)

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

OKLab Modern
oklab(47.65% 0.002 -0.016)

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: 39.22, a: 1.45, b: -5.98

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

LCH Perceptual
L: 39.22, C: 6.16, H: 283.65

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

XYZ CIE Science
X: 10.44, Y: 10.79, Z: 14.10

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
5921894

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

RGB Color Percentages for #5a5c66

RGB Color Percentages for Concrete Landscape (HEX Code: #5a5c66) 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 Blue, making up 35.92% of the total composition. The complete breakdown of RGB contributions is:

Red:
31.69%
Green:
32.39%
Blue:
35.92%

This analysis highlights the influence of each primary color, offering a deeper understanding of the visual characteristics of Concrete Landscape.

CMYK Ink Levels & Print Guide for #5a5c66

CMYK Ink Levels for Concrete Landscape (HEX Code: #5a5c66) provide a breakdown of the percentages of Cyan, Magenta, Yellow, and Black inks needed for accurate print reproduction. The composition of Concrete Landscape 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: 11.76%, Magenta: 9.8%, Yellow: 0%, and Black: 60%.

Luminance & Contrast for #5A5C66

Relative luminance gauges how bright Concrete Landscape 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 0.108
0 · dark1 · light
Aa
Black text 3.16:1
AA AAA Large
Aa
White text 6.65:1
AA AAA Large

Quick CSS Snippets for #5A5C66

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

Background background-color: #5A5C66;
Text color: #5A5C66;
Border border: 2px solid #5A5C66;
RGB background-color: rgb(90, 92, 102);
HSL background-color: hsl(230, 6%, 38%);
Variable --color: #5A5C66;

#5a5c66 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.

#eeeff0
#d6d6d9
#bdbec2
#a4a5ab
#8c8d94
#73747d
#5a5c66 Original
#4d4e57
#3f4047
#323338
#242529
#17171a
#09090a

#5a5c66 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.

#5a5c66 Original
#67655b

#5a5c66 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.

#5a5c66 Original
#5f5b67
#5b6367
#655b67
#5b6765
#675b63
#5b675f

#5a5c66 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.

#5a5c66 Original
#675b5d
#5d675b

#5a5c66 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.

#5a5c66 Original
#675b63
#67655b
#5b675f

Color Blindness Simulation for #5a5c66

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 Concrete Landscape (#5a5c66) 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 #5a5c66

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)

#5A5C66 Nearby Colors

A handful of colors just a step away from #5A5C66 — 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.

#666677 Venus Mist
#445555 All Nighter
#777788 Flying Carpet
#444444 Black Panther
#555577 Majestic Magic
#555555 Stone Cold
#555566 Black Orchid
#665566 Fedora

Colors Similar to #5a5c66

These colors are close neighbours of #5A5C66 in the RGB color space. Each subtle variation can produce a noticeably different mood in your design while remaining harmonious with the original Charcoal tone.

#5b5c66 Concrete Landscape
#5a5d66 Concrete Landscape
#5a5c67 Concrete Landscape
#595c66 Concrete Landscape
#5a5b66 Blackwater
#5a5c65 Concrete Landscape
#6b5c66 Chimaera
#5a6d66 Dark Forest
#5a5c77 Majestic Magic
#495c66 Fiord
#5a4b66 Nightly Walk
#5a5c55 Crucible

Looking for more Charcoal shades? Browse Charcoal colors →

Explore Vibrant Images Featuring Concrete Landscape (#5a5c66)

Discover a vibrant gallery of images that not only showcase the captivating hue of Concrete Landscape, 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.