#31B337#31B337

#31B337 is a light, vivid green. Relative luminance 0.332; OKLCH L 67.3% C 0.197 H 143.6°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#31B337
RGB	rgb(49, 179, 55)
HSL	hsl(123, 57%, 45%)
HSV	hsv(123, 73%, 70%)
CMYK	cmyk(72.6%, 0%, 69.3%, 29.8%)
CIE-LAB	lab(64.30, -58.57, 51.12)
CIE-LCH	lch(64.30, 77.74, 138.89°)
OKLab	oklab(67.29% -0.1587 0.1172)
OKLCH	oklch(67.29% 0.197 143.6)
XYZ	xyz(18.0752, 33.1670, 9.0630)
Luminance	0.3317 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B337 #B331AD

analogous

#6CB331 #31B337 #31B378

triadic

#31B337 #3731B3 #B33731

tetradic

#31B337 #316CB3 #B331AD #B37831

square

#31B337 #316CB3 #B331AD #B37831

split-complementary

#31B337 #7831B3 #B3316C

monochromatic

#175319 #248328 #31B337 #52D057 #82DD86

Accessibility & contrast

On white

2.75

#31B337 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.63

#31B337 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B337

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B337	#FFFFFF	#000000	##000000
##31B337	1.00	2.75	7.63	7.63
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.63	21.00	1.00	1.00
##000000	7.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A225

Deuteranopia (green-blind)

#A89843

Tritanopia (blue-blind)

#00AE9A

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #31b337;
/* rgb */ color: rgb(49, 179, 55);
/* oklch */ color: oklch(67.3% 0.197 143.6);

Tailwind

colors: {
  custom: {
    50: '#7dcb74',
    500: '#31b337',
    950: '#000000',
  },
}

SCSS

$custom: #31b337;
$custom-light: #7dcb74;
$custom-dark: #000000;

JSON

{
  "hex": "#31b337",
  "rgb": {
    "r": 49,
    "g": 179,
    "b": 55
  },
  "hsl": {
    "h": 122.769,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.67291,
    "c": 0.1973,
    "h": 143.6
  },
  "luminance": 0.33169
}

Semantic roles & 50–950 ramp

primary

#31B337

secondary

#C67AC2

accent

#48D9E0

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B337

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

Preview Lab → · Contrast checker → · Palette generator →