#51591D#51591D

#51591D is a dark, moderate yellow. Relative luminance 0.090; OKLCH L 44.4% C 0.083 H 116.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#51591D
RGB	rgb(81, 89, 29)
HSL	hsl(68, 51%, 23%)
HSV	hsv(68, 67%, 35%)
CMYK	cmyk(9%, 0%, 67.4%, 65.1%)
CIE-LAB	lab(35.95, -12.49, 32.59)
CIE-LCH	lch(35.95, 34.91, 110.97°)
OKLab	oklab(44.36% -0.0368 0.0744)
OKLCH	oklch(44.36% 0.083 116.3)
XYZ	xyz(7.1876, 8.9829, 2.5174)
Luminance	0.0898 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51591D #251D59

analogous

#59431D #51591D #33591D

triadic

#51591D #1D5159 #591D51

tetradic

#51591D #1D5943 #251D59 #591D33

square

#51591D #1D5943 #251D59 #591D33

split-complementary

#51591D #1D3359 #431D59

monochromatic

#151708 #272B0E #51591D #7B872C #A5B53B

Accessibility & contrast

On white

7.51

#51591D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#51591D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51591D

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51591D	#FFFFFF	#000000	##FFFFFF
##51591D	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)

#5F5416

Deuteranopia (green-blind)

#5F5521

Tritanopia (blue-blind)

#56544C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #51591d;
/* rgb */ color: rgb(81, 89, 29);
/* oklch */ color: oklch(44.4% 0.083 116.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#51591d",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 29
  },
  "hsl": {
    "h": 68,
    "s": 50.847,
    "l": 23.137
  },
  "oklch": {
    "l": 0.44355,
    "c": 0.08303,
    "h": 116.3
  },
  "luminance": 0.08983
}

Semantic roles & 50–950 ramp

primary

#51591D

secondary

#4E448E

accent

#4DDA60

background

#F8F8F5

surface

#EFEFE9

border

#CACAC5

text

#0B0B04

muted

#7C7C79

Preview Lab

Preview with #51591D

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

Preview Lab → · Contrast checker → · Palette generator →