#51591C#51591C

#51591C is a dark, moderate yellow. Relative luminance 0.090; OKLCH L 44.3% C 0.084 H 116.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#51591C
RGB	rgb(81, 89, 28)
HSL	hsl(68, 52%, 23%)
HSV	hsv(68, 69%, 35%)
CMYK	cmyk(9%, 0%, 68.5%, 65.1%)
CIE-LAB	lab(35.94, -12.57, 33.07)
CIE-LCH	lch(35.94, 35.37, 110.81°)
OKLab	oklab(44.35% -0.0372 0.0753)
OKLCH	oklch(44.35% 0.084 116.3)
XYZ	xyz(7.1755, 8.9780, 2.4533)
Luminance	0.0898 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51591C #241C59

analogous

#59421C #51591C #32591C

triadic

#51591C #1C5159 #591C51

tetradic

#51591C #1C5942 #241C59 #591C32

square

#51591C #1C5942 #241C59 #591C32

split-complementary

#51591C #1C3259 #421C59

monochromatic

#151707 #272A0D #51591C #7B882B #A6B639

Accessibility & contrast

On white

7.51

#51591C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#51591C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51591C

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51591C	#FFFFFF	#000000	##FFFFFF
##51591C	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5414

Deuteranopia (green-blind)

#5F5520

Tritanopia (blue-blind)

#56544C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #51591c;
/* rgb */ color: rgb(81, 89, 28);
/* oklch */ color: oklch(44.3% 0.084 116.3);

Tailwind

colors: {
  custom: {
    50: '#84875c',
    500: '#51591c',
    950: '#000000',
  },
}

SCSS

$custom: #51591c;
$custom-light: #84875c;
$custom-dark: #000000;

JSON

{
  "hex": "#51591c",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 28
  },
  "hsl": {
    "h": 67.869,
    "s": 52.137,
    "l": 22.941
  },
  "oklch": {
    "l": 0.44345,
    "c": 0.08393,
    "h": 116.3
  },
  "luminance": 0.08978
}

Semantic roles & 50–950 ramp

primary

#51591C

secondary

#4C428F

accent

#4CDC5F

background

#F8F8F5

surface

#EFEFE9

border

#CACAC5

text

#0B0B04

muted

#7C7C79

Preview Lab

Preview with #51591C

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

Preview Lab → · Contrast checker → · Palette generator →