#31B657#31B657

#31B657 is a light, vivid green. Relative luminance 0.348; OKLCH L 68.5% C 0.176 H 148.5°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#31B657
RGB	rgb(49, 182, 87)
HSL	hsl(137, 58%, 45%)
HSV	hsv(137, 73%, 71%)
CMYK	cmyk(73.1%, 0%, 52.2%, 28.6%)
CIE-LAB	lab(65.59, -55.71, 38.09)
CIE-LCH	lch(65.59, 67.48, 145.64°)
OKLab	oklab(68.47% -0.1499 0.0919)
OKLCH	oklch(68.47% 0.176 148.5)
XYZ	xyz(19.7133, 34.7947, 14.6921)
Luminance	0.3480 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B657 #B63190

analogous

#4DB631 #31B657 #31B69A

triadic

#31B657 #5731B6 #B65731

tetradic

#31B657 #314DB6 #B63190 #B69A31

square

#31B657 #314DB6 #B63190 #B69A31

split-complementary

#31B657 #9A31B6 #B6314D

monochromatic

#175629 #248640 #31B657 #53D177 #84DE9D

Accessibility & contrast

On white

2.64

#31B657 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#31B657 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B657

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B657	#FFFFFF	#000000	##000000
##31B657	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A64F

Deuteranopia (green-blind)

#A89B5E

Tritanopia (blue-blind)

#00B2A0

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b657;
/* rgb */ color: rgb(49, 182, 87);
/* oklch */ color: oklch(68.5% 0.176 148.5);

Tailwind

colors: {
  custom: {
    50: '#7ccd88',
    500: '#31b657',
    950: '#000000',
  },
}

SCSS

$custom: #31b657;
$custom-light: #7ccd88;
$custom-dark: #000000;

JSON

{
  "hex": "#31b657",
  "rgb": {
    "r": 49,
    "g": 182,
    "b": 87
  },
  "hsl": {
    "h": 137.143,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.68467,
    "c": 0.17581,
    "h": 148.5
  },
  "luminance": 0.34797
}

Semantic roles & 50–950 ramp

primary

#31B657

secondary

#C77CB2

accent

#47B5E1

background

#F8FCF8

surface

#EFF9F0

border

#CAD2CB

text

#0B140B

muted

#7C827C

Preview Lab

Preview with #31B657

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

Preview Lab → · Contrast checker → · Palette generator →