#31BB51#31BB51

#31BB51 is a light, vivid green. Relative luminance 0.368; OKLCH L 69.7% C 0.187 H 147.0°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#31BB51
RGB	rgb(49, 187, 81)
HSL	hsl(134, 58%, 46%)
HSV	hsv(134, 74%, 73%)
CMYK	cmyk(73.8%, 0%, 56.7%, 26.7%)
CIE-LAB	lab(67.12, -58.30, 42.84)
CIE-LCH	lch(67.12, 72.35, 143.69°)
OKLab	oklab(69.71% -0.157 0.102)
OKLCH	oklch(69.71% 0.187 147)
XYZ	xyz(20.5206, 36.7853, 13.8018)
Luminance	0.3679 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31BB51 #BB319B

analogous

#56BB31 #31BB51 #31BB96

triadic

#31BB51 #5131BB #BB5131

tetradic

#31BB51 #3156BB #BB319B #BB9631

square

#31BB51 #3156BB #BB319B #BB9631

split-complementary

#31BB51 #9631BB #BB3156

monochromatic

#185A27 #248B3C #31BB51 #56D373 #87E09B

Accessibility & contrast

On white

2.51

#31BB51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.36

#31BB51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31BB51

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31BB51	#FFFFFF	#000000	##000000
##31BB51	1.00	2.51	8.36	8.36
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.36	21.00	1.00	1.00
##000000	8.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDAA47

Deuteranopia (green-blind)

#AD9F59

Tritanopia (blue-blind)

#00B7A3

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #31bb51;
/* rgb */ color: rgb(49, 187, 81);
/* oklch */ color: oklch(69.7% 0.187 147.0);

Tailwind

colors: {
  custom: {
    50: '#7ed185',
    500: '#31bb51',
    950: '#000000',
  },
}

SCSS

$custom: #31bb51;
$custom-light: #7ed185;
$custom-dark: #000000;

JSON

{
  "hex": "#31bb51",
  "rgb": {
    "r": 49,
    "g": 187,
    "b": 81
  },
  "hsl": {
    "h": 133.913,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.69708,
    "c": 0.18721,
    "h": 147
  },
  "luminance": 0.36788
}

Semantic roles & 50–950 ramp

primary

#31BB51

secondary

#C97FB8

accent

#46BEE2

background

#F8FCF8

surface

#EFF9EF

border

#CAD2CA

text

#0B140B

muted

#7C827C

Preview Lab

Preview with #31BB51

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

Preview Lab → · Contrast checker → · Palette generator →