#646337#646337

#646337 is a mid, moderate yellow. Relative luminance 0.119; OKLCH L 49.0% C 0.064 H 107.4°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#646337
RGB	rgb(100, 99, 55)
HSL	hsl(59, 29%, 30%)
HSV	hsv(59, 45%, 39%)
CMYK	cmyk(0%, 1%, 45%, 60.8%)
CIE-LAB	lab(41.07, -6.79, 25.08)
CIE-LCH	lch(41.07, 25.98, 105.16°)
OKLab	oklab(48.96% -0.019 0.0606)
OKLCH	oklch(48.96% 0.064 107.4)
XYZ	xyz(10.4071, 11.9091, 5.3641)
Luminance	0.1191 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646337 #373864

analogous

#644C37 #646337 #4E6437

triadic

#646337 #376463 #633764

tetradic

#646337 #37644C #373864 #64374E

square

#646337 #37644C #373864 #64374E

split-complementary

#646337 #374E64 #4C3764

monochromatic

#15150C #3D3C21 #646337 #8B8A4D #ACAB69

Accessibility & contrast

On white

6.21

#646337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#646337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646337

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646337	#FFFFFF	#000000	##FFFFFF
##646337	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6033

Deuteranopia (green-blind)

#6A6239

Tritanopia (blue-blind)

#6A5E58

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #646337;
/* rgb */ color: rgb(100, 99, 55);
/* oklch */ color: oklch(49.0% 0.064 107.4);

Tailwind

colors: {
  custom: {
    50: '#918f6f',
    500: '#646337',
    950: '#000000',
  },
}

SCSS

$custom: #646337;
$custom-light: #918f6f;
$custom-dark: #000000;

JSON

{
  "hex": "#646337",
  "rgb": {
    "r": 100,
    "g": 99,
    "b": 55
  },
  "hsl": {
    "h": 58.667,
    "s": 29.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.48962,
    "c": 0.0635,
    "h": 107.4
  },
  "luminance": 0.11909
}

Semantic roles & 50–950 ramp

primary

#646337

secondary

#626394

accent

#65C562

background

#F9F8F6

surface

#F1F0EC

border

#CBCBC7

text

#0D0C07

muted

#7E7D7A

Preview Lab

Preview with #646337

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

Preview Lab → · Contrast checker → · Palette generator →