#31B53B#31B53B

#31B53B is a light, vivid green. Relative luminance 0.340; OKLCH L 67.9% C 0.197 H 144.0°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#31B53B
RGB	rgb(49, 181, 59)
HSL	hsl(125, 57%, 45%)
HSV	hsv(125, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 67.4%, 29%)
CIE-LAB	lab(64.97, -58.85, 50.22)
CIE-LCH	lch(64.97, 77.36, 139.53°)
OKLab	oklab(67.86% -0.1593 0.1158)
OKLCH	oklch(67.86% 0.197 144)
XYZ	xyz(18.5787, 34.0144, 9.7231)
Luminance	0.3402 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B53B #B531AB

analogous

#69B531 #31B53B #31B57D

triadic

#31B53B #3B31B5 #B53B31

tetradic

#31B53B #3169B5 #B531AB #B57D31

square

#31B53B #3169B5 #B531AB #B57D31

split-complementary

#31B53B #7D31B5 #B53169

monochromatic

#17551C #24852B #31B53B #53D05C #83DD8A

Accessibility & contrast

On white

2.69

#31B53B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#31B53B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B53B

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B53B	#FFFFFF	#000000	##000000
##31B53B	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A42B

Deuteranopia (green-blind)

#A99A46

Tritanopia (blue-blind)

#00B09C

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #31b53b;
/* rgb */ color: rgb(49, 181, 59);
/* oklch */ color: oklch(67.9% 0.197 144.0);

Tailwind

colors: {
  custom: {
    50: '#7dcc77',
    500: '#31b53b',
    950: '#000000',
  },
}

SCSS

$custom: #31b53b;
$custom-light: #7dcc77;
$custom-dark: #000000;

JSON

{
  "hex": "#31b53b",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 59
  },
  "hsl": {
    "h": 124.545,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.67863,
    "c": 0.19691,
    "h": 144
  },
  "luminance": 0.34016
}

Semantic roles & 50–950 ramp

primary

#31B53B

secondary

#C77BC1

accent

#47D5E1

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B53B

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

Preview Lab → · Contrast checker → · Palette generator →