#51631F#51631F

#51631F is a mid, moderate yellow-green. Relative luminance 0.108; OKLCH L 47.0% C 0.095 H 122.8°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#51631F
RGB	rgb(81, 99, 31)
HSL	hsl(76, 52%, 25%)
HSV	hsv(76, 69%, 39%)
CMYK	cmyk(18.2%, 0%, 68.7%, 61.2%)
CIE-LAB	lab(39.19, -17.85, 35.10)
CIE-LCH	lch(39.19, 39.38, 116.95°)
OKLab	oklab(46.97% -0.0515 0.08)
OKLCH	oklch(46.97% 0.095 122.8)
XYZ	xyz(8.1026, 10.7719, 2.9484)
Luminance	0.1077 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51631F #311F63

analogous

#63531F #51631F #2F631F

triadic

#51631F #1F5163 #631F51

tetradic

#51631F #1F6353 #311F63 #631F2F

square

#51631F #1F6353 #311F63 #631F2F

split-complementary

#51631F #1F2F63 #531F63

monochromatic

#131707 #2B3410 #51631F #77922E #9DC03C

Accessibility & contrast

On white

6.66

#51631F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#51631F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51631F

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51631F	#FFFFFF	#000000	##FFFFFF
##51631F	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)

#695D16

Deuteranopia (green-blind)

#675C24

Tritanopia (blue-blind)

#555E55

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #51631f;
/* rgb */ color: rgb(81, 99, 31);
/* oklch */ color: oklch(47.0% 0.095 122.8);

Tailwind

colors: {
  custom: {
    50: '#848f5e',
    500: '#51631f',
    950: '#000000',
  },
}

SCSS

$custom: #51631f;
$custom-light: #848f5e;
$custom-dark: #000000;

JSON

{
  "hex": "#51631f",
  "rgb": {
    "r": 81,
    "g": 99,
    "b": 31
  },
  "hsl": {
    "h": 75.882,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.46969,
    "c": 0.09518,
    "h": 122.8
  },
  "luminance": 0.10772
}

Semantic roles & 50–950 ramp

primary

#51631F

secondary

#5C4698

accent

#4CDC72

background

#F8F8F5

surface

#EFF0E9

border

#CACBC5

text

#0B0C05

muted

#7C7D79

Preview Lab

Preview with #51631F

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

Preview Lab → · Contrast checker → · Palette generator →