#63644C#63644C

#63644C is a mid, muted yellow. Relative luminance 0.123; OKLCH L 49.5% C 0.036 H 109.6°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#63644C
RGB	rgb(99, 100, 76)
HSL	hsl(63, 14%, 35%)
HSV	hsv(63, 24%, 39%)
CMYK	cmyk(1%, 0%, 24%, 60.8%)
CIE-LAB	lab(41.67, -4.87, 13.53)
CIE-LCH	lch(41.67, 14.38, 109.79°)
OKLab	oklab(49.54% -0.0123 0.0344)
OKLCH	oklch(49.54% 0.036 109.6)
XYZ	xyz(11.0072, 12.2889, 8.6282)
Luminance	0.1229 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63644C #4D4C64

analogous

#64594C #63644C #57644C

triadic

#63644C #4C6364 #644C63

tetradic

#63644C #4C6459 #4D4C64 #644C57

square

#63644C #4C6459 #4D4C64 #644C57

split-complementary

#63644C #4C5764 #594C64

monochromatic

#1E1E17 #414132 #63644C #858766 #A2A487

Accessibility & contrast

On white

6.07

#63644C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#63644C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #63644C

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63644C	#FFFFFF	#000000	##FFFFFF
##63644C	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68624A

Deuteranopia (green-blind)

#68634D

Tritanopia (blue-blind)

#66615D

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #63644c;
/* rgb */ color: rgb(99, 100, 76);
/* oklch */ color: oklch(49.5% 0.036 109.6);

Tailwind

colors: {
  custom: {
    50: '#8f907e',
    500: '#63644c',
    950: '#000000',
  },
}

SCSS

$custom: #63644c;
$custom-light: #8f907e;
$custom-dark: #000000;

JSON

{
  "hex": "#63644c",
  "rgb": {
    "r": 99,
    "g": 100,
    "b": 76
  },
  "hsl": {
    "h": 62.5,
    "s": 13.636,
    "l": 34.51
  },
  "oklch": {
    "l": 0.49544,
    "c": 0.03647,
    "h": 109.6
  },
  "luminance": 0.12289
}

Semantic roles & 50–950 ramp

primary

#63644C

secondary

#7B7A91

accent

#71B674

background

#F8F8F7

surface

#F0F0EE

border

#CBCBC9

text

#0C0C0A

muted

#7D7D7C

Preview Lab

Preview with #63644C

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

Preview Lab → · Contrast checker → · Palette generator →