#31801B#31801B

#31801B is a mid, vivid green. Relative luminance 0.162; OKLCH L 53.1% C 0.154 H 139.9°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#31801B
RGB	rgb(49, 128, 27)
HSL	hsl(107, 65%, 30%)
HSV	hsv(107, 79%, 50%)
CMYK	cmyk(61.7%, 0%, 78.9%, 49.8%)
CIE-LAB	lab(47.20, -42.96, 44.33)
CIE-LCH	lch(47.20, 61.74, 134.10°)
OKLab	oklab(53.06% -0.118 0.0993)
OKLCH	oklch(53.06% 0.154 139.9)
XYZ	xyz(9.1832, 16.1696, 3.6738)
Luminance	0.1617 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31801B #6A1B80

analogous

#63801B #31801B #1B8038

triadic

#31801B #1B3180 #801B31

tetradic

#31801B #1B6380 #6A1B80 #80381B

square

#31801B #1B6380 #6A1B80 #80381B

split-complementary

#31801B #381B80 #801B63

monochromatic

#0A1B06 #1E4D10 #31801B #44B326 #60D63F

Accessibility & contrast

On white

4.96

#31801B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#31801B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31801B

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31801B	#FFFFFF	#000000	##FFFFFF
##31801B	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#847403

Deuteranopia (green-blind)

#7A6D26

Tritanopia (blue-blind)

#277C6D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #31801b;
/* rgb */ color: rgb(49, 128, 27);
/* oklch */ color: oklch(53.1% 0.154 139.9);

Tailwind

colors: {
  custom: {
    50: '#73a660',
    500: '#31801b',
    950: '#000000',
  },
}

SCSS

$custom: #31801b;
$custom-light: #73a660;
$custom-dark: #000000;

JSON

{
  "hex": "#31801b",
  "rgb": {
    "r": 49,
    "g": 128,
    "b": 27
  },
  "hsl": {
    "h": 106.931,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.53061,
    "c": 0.1542,
    "h": 139.9
  },
  "luminance": 0.1617
}

Semantic roles & 50–950 ramp

primary

#31801B

secondary

#9B43B4

accent

#40E8C3

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#090F05

muted

#7B7F79

Preview Lab

Preview with #31801B

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

Preview Lab → · Contrast checker → · Palette generator →