#51631D#51631D

#51631D is a mid, moderate yellow-green. Relative luminance 0.108; OKLCH L 46.9% C 0.097 H 122.6°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#51631D
RGB	rgb(81, 99, 29)
HSL	hsl(75, 55%, 25%)
HSV	hsv(75, 71%, 39%)
CMYK	cmyk(18.2%, 0%, 70.7%, 61.2%)
CIE-LAB	lab(39.18, -18.00, 36.00)
CIE-LCH	lch(39.18, 40.25, 116.57°)
OKLab	oklab(46.95% -0.0522 0.0816)
OKLCH	oklch(46.95% 0.097 122.6)
XYZ	xyz(8.0770, 10.7617, 2.8139)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51631D #2F1D63

analogous

#63521D #51631D #2E631D

triadic

#51631D #1D5163 #631D51

tetradic

#51631D #1D6352 #2F1D63 #631D2E

square

#51631D #1D6352 #2F1D63 #631D2E

split-complementary

#51631D #1D2E63 #521D63

monochromatic

#131807 #2A340F #51631D #78922B #9EC239

Accessibility & contrast

On white

6.66

#51631D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#51631D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51631D

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51631D	#FFFFFF	#000000	##FFFFFF
##51631D	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#695D13

Deuteranopia (green-blind)

#675C22

Tritanopia (blue-blind)

#555E55

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #51631d;
/* rgb */ color: rgb(81, 99, 29);
/* oklch */ color: oklch(46.9% 0.097 122.6);

Tailwind

colors: {
  custom: {
    50: '#848f5d',
    500: '#51631d',
    950: '#000000',
  },
}

SCSS

$custom: #51631d;
$custom-light: #848f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#51631d",
  "rgb": {
    "r": 81,
    "g": 99,
    "b": 29
  },
  "hsl": {
    "h": 75.429,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.4695,
    "c": 0.09686,
    "h": 122.6
  },
  "luminance": 0.10762
}

Semantic roles & 50–950 ramp

primary

#51631D

secondary

#594498

accent

#4ADE70

background

#F8F8F5

surface

#EFF0E9

border

#CACBC5

text

#0B0C04

muted

#7C7D79

Preview Lab

Preview with #51631D

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

Preview Lab → · Contrast checker → · Palette generator →