#63511B#63511B

#63511B is a dark, moderate yellow. Relative luminance 0.086; OKLCH L 44.2% C 0.075 H 90.3°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#63511B
RGB	rgb(99, 81, 27)
HSL	hsl(45, 57%, 25%)
HSV	hsv(45, 73%, 39%)
CMYK	cmyk(0%, 18.2%, 72.7%, 61.2%)
CIE-LAB	lab(35.24, 0.86, 33.35)
CIE-LCH	lch(35.24, 33.36, 88.52°)
OKLab	oklab(44.21% -0.0004 0.0751)
OKLCH	oklch(44.21% 0.075 90.3)
XYZ	xyz(8.2863, 8.6171, 2.2635)
Luminance	0.0862 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63511B #1B2D63

analogous

#632D1B #63511B #51631B

triadic

#63511B #1B6351 #511B63

tetradic

#63511B #1B632D #1B2D63 #631B51

square

#63511B #1B632D #1B2D63 #631B51

split-complementary

#63511B #1B5163 #2D1B63

monochromatic

#181407 #332A0E #63511B #937828 #C3A035

Accessibility & contrast

On white

7.71

#63511B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#63511B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63511B

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63511B	#FFFFFF	#000000	##FFFFFF
##63511B	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5014

Deuteranopia (green-blind)

#5F551E

Tritanopia (blue-blind)

#6B4A46

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #63511b;
/* rgb */ color: rgb(99, 81, 27);
/* oklch */ color: oklch(44.2% 0.075 90.3);

Tailwind

colors: {
  custom: {
    50: '#92815a',
    500: '#63511b',
    950: '#000000',
  },
}

SCSS

$custom: #63511b;
$custom-light: #92815a;
$custom-dark: #000000;

JSON

{
  "hex": "#63511b",
  "rgb": {
    "r": 99,
    "g": 81,
    "b": 27
  },
  "hsl": {
    "h": 45,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.44205,
    "c": 0.07509,
    "h": 90.3
  },
  "luminance": 0.08617
}

Semantic roles & 50–950 ramp

primary

#63511B

secondary

#415798

accent

#6EE047

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0A04

muted

#7E7C79

Preview Lab

Preview with #63511B

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

Preview Lab → · Contrast checker → · Palette generator →