#635F1B#635F1B

#635F1B is a mid, moderate yellow. Relative luminance 0.109; OKLCH L 47.5% C 0.088 H 106.0°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#635F1B
RGB	rgb(99, 95, 27)
HSL	hsl(57, 57%, 25%)
HSV	hsv(57, 73%, 39%)
CMYK	cmyk(0%, 4%, 72.7%, 61.2%)
CIE-LAB	lab(39.44, -7.44, 37.65)
CIE-LCH	lch(39.44, 38.38, 101.18°)
OKLab	oklab(47.54% -0.0241 0.0842)
OKLCH	oklch(47.54% 0.088 106)
XYZ	xyz(9.4360, 10.9165, 2.6468)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#635F1B #1B1F63

analogous

#633B1B #635F1B #43631B

triadic

#635F1B #1B635F #5F1B63

tetradic

#635F1B #1B633B #1B1F63 #631B43

square

#635F1B #1B633B #1B1F63 #631B43

split-complementary

#635F1B #1B4363 #3B1B63

monochromatic

#181707 #33310E #635F1B #938D28 #C3BB35

Accessibility & contrast

On white

6.60

#635F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#635F1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #635F1B

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##635F1B	#FFFFFF	#000000	##FFFFFF
##635F1B	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685B11

Deuteranopia (green-blind)

#695E1F

Tritanopia (blue-blind)

#6B5851

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #635f1b;
/* rgb */ color: rgb(99, 95, 27);
/* oklch */ color: oklch(47.5% 0.088 106.0);

Tailwind

colors: {
  custom: {
    50: '#928c5c',
    500: '#635f1b',
    950: '#000000',
  },
}

SCSS

$custom: #635f1b;
$custom-light: #928c5c;
$custom-dark: #000000;

JSON

{
  "hex": "#635f1b",
  "rgb": {
    "r": 99,
    "g": 95,
    "b": 27
  },
  "hsl": {
    "h": 56.667,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.47537,
    "c": 0.08757,
    "h": 106
  },
  "luminance": 0.10916
}

Semantic roles & 50–950 ramp

primary

#635F1B

secondary

#414698

accent

#50E047

background

#F9F8F5

surface

#F1F0E9

border

#CBCBC5

text

#0D0C04

muted

#7E7D79

Preview Lab

Preview with #635F1B

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

Preview Lab → · Contrast checker → · Palette generator →