#51641B#51641B

#51641B is a mid, moderate yellow-green. Relative luminance 0.109; OKLCH L 47.2% C 0.100 H 122.9°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#51641B
RGB	rgb(81, 100, 27)
HSL	hsl(76, 57%, 25%)
HSV	hsv(76, 73%, 39%)
CMYK	cmyk(19%, 0%, 73%, 60.8%)
CIE-LAB	lab(39.48, -18.69, 37.20)
CIE-LCH	lch(39.48, 41.63, 116.67°)
OKLab	oklab(47.19% -0.0543 0.0838)
OKLCH	oklch(47.19% 0.1 122.9)
XYZ	xyz(8.1484, 10.9428, 2.7196)
Luminance	0.1094 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51641B #2E1B64

analogous

#64521B #51641B #2D641B

triadic

#51641B #1B5164 #641B51

tetradic

#51641B #1B6452 #2E1B64 #641B2D

square

#51641B #1B6452 #2E1B64 #641B2D

split-complementary

#51641B #1B2D64 #521B64

monochromatic

#141807 #2A340E #51641B #789428 #9FC435

Accessibility & contrast

On white

6.59

#51641B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#51641B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51641B

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51641B	#FFFFFF	#000000	##FFFFFF
##51641B	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A5E10

Deuteranopia (green-blind)

#685D21

Tritanopia (blue-blind)

#555F55

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #51641b;
/* rgb */ color: rgb(81, 100, 27);
/* oklch */ color: oklch(47.2% 0.100 122.9);

Tailwind

colors: {
  custom: {
    50: '#84905c',
    500: '#51641b',
    950: '#000000',
  },
}

SCSS

$custom: #51641b;
$custom-light: #84905c;
$custom-dark: #000000;

JSON

{
  "hex": "#51641b",
  "rgb": {
    "r": 81,
    "g": 100,
    "b": 27
  },
  "hsl": {
    "h": 75.616,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.47193,
    "c": 0.09982,
    "h": 122.9
  },
  "luminance": 0.10943
}

Semantic roles & 50–950 ramp

primary

#51641B

secondary

#584199

accent

#47E16F

background

#F8F8F5

surface

#EFF0E9

border

#CACBC5

text

#0B0C04

muted

#7C7D79

Preview Lab

Preview with #51641B

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

Preview Lab → · Contrast checker → · Palette generator →