#31B371#31B371

#31B371 is a light, vivid green. Relative luminance 0.341; OKLCH L 68.1% C 0.148 H 156.1°. Best body text is #000000 at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#31B371
RGB	rgb(49, 179, 113)
HSL	hsl(150, 57%, 45%)
HSV	hsv(150, 73%, 70%)
CMYK	cmyk(72.6%, 0%, 36.9%, 29.8%)
CIE-LAB	lab(65.03, -50.07, 23.92)
CIE-LCH	lch(65.03, 55.49, 154.46°)
OKLab	oklab(68.13% -0.1354 0.06)
OKLCH	oklch(68.13% 0.148 156.1)
XYZ	xyz(20.3654, 34.0831, 21.1250)
Luminance	0.3408 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B371 #B33173

analogous

#32B331 #31B371 #31B3B2

triadic

#31B371 #7131B3 #B37131

tetradic

#31B371 #3132B3 #B33173 #B3B231

square

#31B371 #3132B3 #B33173 #B3B231

split-complementary

#31B371 #B231B3 #B33132

monochromatic

#175334 #248353 #31B371 #52D090 #82DDAE

Accessibility & contrast

On white

2.69

#31B371 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.82

#31B371 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B371

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B371	#FFFFFF	#000000	##000000
##31B371	1.00	2.69	7.82	7.82
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.82	21.00	1.00	1.00
##000000	7.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A56D

Deuteranopia (green-blind)

#A29975

Tritanopia (blue-blind)

#00B1A2

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #31b371;
/* rgb */ color: rgb(49, 179, 113);
/* oklch */ color: oklch(68.1% 0.148 156.1);

Tailwind

colors: {
  custom: {
    50: '#7bcb9a',
    500: '#31b371',
    950: '#000000',
  },
}

SCSS

$custom: #31b371;
$custom-light: #7bcb9a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b371",
  "rgb": {
    "r": 49,
    "g": 179,
    "b": 113
  },
  "hsl": {
    "h": 149.538,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.68134,
    "c": 0.14806,
    "h": 156.1
  },
  "luminance": 0.34085
}

Semantic roles & 50–950 ramp

primary

#31B371

secondary

#C67AA0

accent

#4895E0

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #31B371

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

Preview Lab → · Contrast checker → · Palette generator →