#646A4C#646A4C

#646A4C is a mid, muted yellow-green. Relative luminance 0.135; OKLCH L 51.1% C 0.046 H 117.2°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#646A4C
RGB	rgb(100, 106, 76)
HSL	hsl(72, 16%, 36%)
HSV	hsv(72, 28%, 42%)
CMYK	cmyk(5.7%, 0%, 28.3%, 58.4%)
CIE-LAB	lab(43.56, -7.92, 16.12)
CIE-LCH	lch(43.56, 17.96, 116.17°)
OKLab	oklab(51.07% -0.0209 0.0406)
OKLCH	oklch(51.07% 0.046 117.2)
XYZ	xyz(11.7140, 13.5393, 8.8323)
Luminance	0.1354 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A4C #524C6A

analogous

#6A614C #646A4C #556A4C

triadic

#646A4C #4C646A #6A4C64

tetradic

#646A4C #4C6A61 #524C6A #6A4C55

square

#646A4C #4C6A61 #524C6A #6A4C55

split-complementary

#646A4C #4C556A #614C6A

monochromatic

#212319 #424632 #646A4C #868E66 #A2A987

Accessibility & contrast

On white

5.66

#646A4C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#646A4C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A4C

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A4C	#FFFFFF	#000000	##FFFFFF
##646A4C	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E674A

Deuteranopia (green-blind)

#6D674D

Tritanopia (blue-blind)

#676762

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646a4c;
/* rgb */ color: rgb(100, 106, 76);
/* oklch */ color: oklch(51.1% 0.046 117.2);

Tailwind

colors: {
  custom: {
    50: '#90947e',
    500: '#646a4c',
    950: '#000000',
  },
}

SCSS

$custom: #646a4c;
$custom-light: #90947e;
$custom-dark: #000000;

JSON

{
  "hex": "#646a4c",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 76
  },
  "hsl": {
    "h": 72,
    "s": 16.484,
    "l": 35.686
  },
  "oklch": {
    "l": 0.51067,
    "c": 0.04569,
    "h": 117.2
  },
  "luminance": 0.13539
}

Semantic roles & 50–950 ramp

primary

#646A4C

secondary

#817B97

accent

#6FB97E

background

#F8F9F7

surface

#F0F1EE

border

#CBCBC9

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646A4C

Body copy rendered with the generated semantic roles for this colour.

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