Color Details and Palettes for #4D4E40

Details about the color Kelp

Closest web-safe match: #666633

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 #4D4E40
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About Color Hex #4d4e40

The color Kelp, with hexadecimal code #4d4e40, resides in the yellow color family, the most visible hue in the spectrum. Yellow radiates optimism, intellect, and cheerful energy—qualities that made it the imperial color of ancient China. Additionally, it evokes emotions such as Freshness, Harmony, Growth, Youthfulness and Renewal. Yellow represents wealth, glory, and wisdom in various cultures, including being the color of royalty in ancient China. It is also associated with happiness and optimism in many Western cultures. At just 10% 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 28% 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 Freshness, Harmony, Growth, Youthfulness, or Renewal. It can be effectively used in web design, branding, and marketing materials to attract attention and convey specific messages.

The RGB values for Kelp are (77, 78, 64), providing a combination of red: 77, green: 78, and blue: 64. In HSL format, it has a hue of 64.00°, saturation of 10.00%, and lightness of 28.00%.

The HSV representation includes a hue of 64.00°, saturation of 18.00%, and value of 31.00%. Its CMYK composition is cyan: 1.00%, magenta: 0.00%, yellow: 18.00%, and black: 69.00%.

The calculated luminance of #4d4e40 is 0.074, 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 #666633. Its contrast ratio is 2.48:1 against black and 8.47:1 against white. It works well on light backgrounds but may be challenging on darker ones.

In terms of color temperature, #4d4e40 reads as warm. 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 #4d4e40 is white.

Considering its saturation and lightness, #4d4e40 appears more vivid and energetic, making it stand out in designs that aim to capture attention.

History, Usage, Psychology & Design Ideas for #4D4E40

Kelp (#4D4E40) belongs to the Yellow 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

Yellow ochre was one of the first pigments used in cave art, and later Egyptians produced orpiment—a toxic arsenic-based yellow—for tomb paintings. In imperial China, only the emperor could wear bright yellow, making it the most restricted color in the nation. Van Gogh famously obsessed over chrome yellow, using it lavishly in his Sunflowers series and Arles landscapes.

Design & Usage Tips

Yellow is the most visible color in daylight, which is why it dominates warning signs, taxi cabs, and highlighter pens. Use it for attention-grabbing headlines or promotional banners, but ensure sufficient contrast with text—dark gray or black on yellow maintains readability. Avoid large yellow backgrounds on screens, as they can cause eye fatigue.

Positioned on the warm side of the color wheel (hue 64°), it naturally draws the eye and creates a sense of closeness—making it effective for calls to action, food photography, and hospitality branding. With only 10% saturation, this near-neutral shade carries just a hint of its underlying hue—subtle enough for large surfaces yet adding more warmth (or coolness) than a pure gray.

Psychological Impact

Yellow radiates optimism, intellect, and energy. It stimulates mental activity and generates a sense of cheerfulness, which makes it popular in children's products and educational materials. However, overly bright yellows can provoke anxiety, so context and tone matter.

Its low lightness of 28% 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

Pair canary yellow with charcoal for a modern, high-contrast editorial style. Use soft butter yellow as a background for recipe blogs or lifestyle content to evoke warmth. In branding, a yellow logomark on a white background signals innovation and forward-thinking (think Snapchat or National Geographic).

#4D4E40 Color Conversions

Every way to write Kelp — copy Kelp 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
#4D4E40

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(77, 78, 64)

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(64, 10%, 28%)

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(64, 18%, 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(64 25% 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(1%, 0%, 18%, 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(41.86% 0.022 110.68)

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

OKLab Modern
oklab(41.86% -0.008 0.021)

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: 32.69, a: -3.23, b: 8.17

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

LCH Perceptual
L: 32.69, C: 8.78, H: 111.60

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

XYZ CIE Science
X: 6.71, Y: 7.40, Z: 5.92

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
5066304

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

RGB Color Percentages for #4d4e40

RGB Color Percentages for Kelp (HEX Code: #4d4e40) 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 35.62% of the total composition. The complete breakdown of RGB contributions is:

Red:
35.16%
Green:
35.62%
Blue:
29.22%

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

CMYK Ink Levels & Print Guide for #4d4e40

CMYK Ink Levels for Kelp (HEX Code: #4d4e40) provide a breakdown of the percentages of Cyan, Magenta, Yellow, and Black inks needed for accurate print reproduction. The composition of Kelp 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: 1.28%, Magenta: 0%, Yellow: 17.95%, and Black: 69.41%.

Luminance & Contrast for #4D4E40

Relative luminance gauges how bright Kelp 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 0.074
0 · dark1 · light
Aa
Black text 2.48:1
AA AAA Large
Aa
White text 8.47:1
AA AAA Large

Quick CSS Snippets for #4D4E40

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

Background background-color: #4D4E40;
Text color: #4D4E40;
Border border: 2px solid #4D4E40;
RGB background-color: rgb(77, 78, 64);
HSL background-color: hsl(64, 10%, 28%);
Variable --color: #4D4E40;

#4d4e40 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.

#ededec
#d3d3cf
#b8b8b3
#9d9e96
#828379
#68695d
#4d4e40 Original
#414236
#36372d
#2a2b23
#1f1f1a
#131410
#080806

#4d4e40 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.

#4d4e40 Original
#41404f

#4d4e40 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.

#4d4e40 Original
#464f40
#4f4840
#404f41
#4f4140
#404f48
#4f4046

#4d4e40 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.

#4d4e40 Original
#404e4f
#4f404e

#4d4e40 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.

#4d4e40 Original
#404f48
#41404f
#4f4046

Color Blindness Simulation for #4d4e40

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 Kelp (#4d4e40) 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 #4d4e40

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)

#4D4E40 Nearby Colors

A handful of colors just a step away from #4D4E40 — 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.

#555555 Stone Cold
#444433 Olive Leaf
#666655 Black Forest
#333322 Graphite
#445533 Zen Garden Olive
#555544 Kelp
#445544 Hōjicha
#444444 Black Panther

Colors Similar to #4d4e40

These colors are close neighbours of #4D4E40 in the RGB color space. Each subtle variation can produce a noticeably different mood in your design while remaining harmonious with the original Yellow tone.

#4e4e40 Kelp
#4d4f40 Kelp
#4d4e41 Heavy Metal
#4c4e40 Kelp
#4d4d40 Heavy Metal
#4d4e3f Kelp
#5e4e40 Volcanic Island
#4d5f40 Muddy Olive
#4d4e51 Shady Character
#3c4e40 Mountain View
#4d3d40 Pitch Black
#4d4e2f Jungle King

Looking for more Yellow shades? Browse Yellow colors →

Explore Vibrant Images Featuring Kelp (#4d4e40)

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