#646B66 Color Meaning and Information

#646B66 Color Information

#646B66 RGB value is (100, 107, 102). The hex color red value is 100, green is 107, and blue is 102. Its HSL format shows a hue of 137°, saturation of 3 percent, and lightness of 41 percent. The CMYK process values are 7 percent, 0 percent, 5 percent, 58 percent.

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#646B66 Color Meaning

Color #646B66 conveys practicality, modesty, and observational calm. #646B66 neutral grey green (#646B66) avoids attention, creating stability through invisibility. Psychologically, color #646B66 reduces cognitive load and emotional noise. #646B66 supports focus and analytical thinking. Culturally, #646B66 appears in industrial design, archival layouts, and functional environments. Symbolically, #646B66 represents humility, adaptability, and survival through discretion.

Color Conversion

Convert #646B66 across different color models and formats. These conversions help designers work seamlessly between digital and print media, ensuring this color maintains its intended appearance across RGB screens, CMYK printers, and HSL color manipulations.

HEX

#646B66

RGB

rgb(100, 107, 102)

HSL

hsl(137°, 3%, 41%)

CMYK

cmyk(7%, 0%, 5%, 58%)

HSV

hsv(137°, 7%, 42%)

XYZ

12.9115 14.1840 14.6277

Yxy

14.1840 0.3095 0.3400

Hunter Lab

37.6617 -0.1996 0.0906

CIE-Lab

44.4957 -3.7279 1.8711

RGB Values & CMYK Values

RGB Values

Red100 / 255 (39%)

39%

Green107 / 255 (42%)

42%

Blue102 / 255 (40%)

40%

CMYK Values

Cyan7 / 100 (7%)

Magenta0 / 100 (0%)

Yellow5 / 100 (5%)

Key (Black)58 / 100 (58%)

58%

Color Variations

#646B66 harmonies come to life through carefully balanced shades, tints, and tones, giving this color depth and flexibility across light and dark variations. Shades add richness, tints bring an airy softness, and tones soften intensity, making it easy to pair in clean, modern palettes.

Color Harmonies

#646B66 harmonies create beautiful relationships with other colors based on their position on the color wheel. Each harmony type offers unique design possibilities, enabling cohesive and visually appealing color schemes.

Analogous

Colors adjacent on the color wheel (30° apart)

Complementary

Colors opposite on the color wheel (180° apart)

Split Complementary

Three colors using one base hue and the two hues beside its opposite

Triadic

Three colors evenly spaced (120° apart)

Tetradic

Four colors forming a rectangle on the wheel

Square

Four colors evenly spaced (90° apart)

Double Split

Four colors formed from two base hues and the colors next to their opposites

Monochromatic

Variations of a single hue

Contrast Checker

(WCAG 2.1) Test #646B66 for accessibility compliance against white and black backgrounds. Proper contrast ensures this color remains readable and usable for all audiences, meeting WCAG 2.1 standards for both normal and large text applications.

Foreground:#FFFFFF

Background:#646B66

Sample Text

This is how your text will look with these colors.

Large Text (18pt+)

5.47:1

✓WCAG AA

✓WCAG AAA

Normal Text

5.47:1

✓WCAG AA

✗WCAG AAA

UI Components

5.47:1

✓WCAG AA

✓WCAG AAA

Color Blindness Simulator

See how #646B66 appears to people with different types of color vision deficiencies. These simulations help create more inclusive designs that consider how this color is perceived across various visual abilities.

Normal Vision

#646B66

protanopia

#676767

Note: These simulations are approximations. Actual color vision deficiency varies by individual.

CSS Examples

Background Color

background-color: #646B66;

Text Color

color: #646B66;

Sample Text

Border Color

border: 2px solid #646B66;

Box Shadow

box-shadow: 0 4px 6px #646B6640;

Text Shadow

text-shadow: 2px 2px 4px #646B66;

Sample Text

Gradient

background: linear-gradient(135deg, #646B66 0%, #3d413e 100%);

Related Colors

Find out the colors closely related to #646B66 in hue, saturation, and lightness. These color relatives offer harmonious alternatives and complementary options that work well alongside this color in comprehensive color schemes.