#31B137#31B137

#31B137 is a light, vivid green. Relative luminance 0.324; OKLCH L 66.8% C 0.195 H 143.6°. Best body text is #000000 at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#31B137
RGB	rgb(49, 177, 55)
HSL	hsl(123, 57%, 44%)
HSV	hsv(123, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 68.9%, 30.6%)
CIE-LAB	lab(63.65, -57.91, 50.43)
CIE-LCH	lch(63.65, 76.79, 138.95°)
OKLab	oklab(66.75% -0.1569 0.1158)
OKLCH	oklch(66.75% 0.195 143.6)
XYZ	xyz(17.6772, 32.3711, 8.9303)
Luminance	0.3237 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B137 #B131AB

analogous

#6BB131 #31B137 #31B177

triadic

#31B137 #3731B1 #B13731

tetradic

#31B137 #316BB1 #B131AB #B17731

square

#31B137 #316BB1 #B131AB #B17731

split-complementary

#31B137 #7731B1 #B1316B

monochromatic

#165119 #248128 #31B137 #51CF56 #80DC85

Accessibility & contrast

On white

2.81

#31B137 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.47

#31B137 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B137

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B137	#FFFFFF	#000000	##000000
##31B137	1.00	2.81	7.47	7.47
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.47	21.00	1.00	1.00
##000000	7.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A025

Deuteranopia (green-blind)

#A69643

Tritanopia (blue-blind)

#00AC98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b137;
/* rgb */ color: rgb(49, 177, 55);
/* oklch */ color: oklch(66.8% 0.195 143.6);

Tailwind

colors: {
  custom: {
    50: '#7dc974',
    500: '#31b137',
    950: '#000000',
  },
}

SCSS

$custom: #31b137;
$custom-light: #7dc974;
$custom-dark: #000000;

JSON

{
  "hex": "#31b137",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 55
  },
  "hsl": {
    "h": 122.813,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.66753,
    "c": 0.19499,
    "h": 143.6
  },
  "luminance": 0.32373
}

Semantic roles & 50–950 ramp

primary

#31B137

secondary

#C579C1

accent

#48D9E0

background

#F8FCF7

surface

#EFF8ED

border

#CAD1C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B137

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

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