#81731F#81731F

#81731F is a mid, moderate yellow. Relative luminance 0.170; OKLCH L 55.3% C 0.102 H 99.5°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#81731F
RGB	rgb(129, 115, 31)
HSL	hsl(51, 61%, 31%)
HSV	hsv(51, 76%, 51%)
CMYK	cmyk(0%, 10.9%, 76%, 49.4%)
CIE-LAB	lab(48.30, -4.37, 45.67)
CIE-LCH	lch(48.30, 45.88, 95.46°)
OKLab	oklab(55.28% -0.0168 0.1008)
OKLCH	oklch(55.28% 0.102 99.5)
XYZ	xyz(15.4321, 17.0283, 3.7700)
Luminance	0.1703 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81731F #1F2D81

analogous

#81421F #81731F #5E811F

triadic

#81731F #1F8173 #731F81

tetradic

#81731F #1F8142 #1F2D81 #811F5E

square

#81731F #1F8142 #1F2D81 #811F5E

split-complementary

#81731F #1F5E81 #421F81

monochromatic

#1E1B07 #504713 #81731F #B29F2B #D3BF47

Accessibility & contrast

On white

4.77

#81731F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#81731F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #81731F

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81731F	#FFFFFF	#000000	##FFFFFF
##81731F	1.00	4.77	4.41	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F7010

Deuteranopia (green-blind)

#827524

Tritanopia (blue-blind)

#8B6A63

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #81731f;
/* rgb */ color: rgb(129, 115, 31);
/* oklch */ color: oklch(55.3% 0.102 99.5);

Tailwind

colors: {
  custom: {
    50: '#a99b61',
    500: '#81731f',
    950: '#000000',
  },
}

SCSS

$custom: #81731f;
$custom-light: #a99b61;
$custom-dark: #000000;

JSON

{
  "hex": "#81731f",
  "rgb": {
    "r": 129,
    "g": 115,
    "b": 31
  },
  "hsl": {
    "h": 51.429,
    "s": 61.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.5528,
    "c": 0.10215,
    "h": 99.5
  },
  "luminance": 0.17028
}

Semantic roles & 50–950 ramp

primary

#81731F

secondary

#4857B4

accent

#5AE443

background

#FAF9F5

surface

#F4F2EA

border

#CECCC6

text

#100E05

muted

#7F7E79

Preview Lab

Preview with #81731F

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

Preview Lab → · Contrast checker → · Palette generator →