#31B731#31B731

#31B731 is a light, highly saturated green. Relative luminance 0.347; OKLCH L 68.3% C 0.206 H 142.9°. Best body text is #000000 at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#31B731
RGB	rgb(49, 183, 49)
HSL	hsl(120, 58%, 45%)
HSV	hsv(120, 73%, 72%)
CMYK	cmyk(73.2%, 0%, 73.2%, 28.2%)
CIE-LAB	lab(65.55, -60.41, 54.71)
CIE-LCH	lch(65.55, 81.50, 137.83°)
OKLab	oklab(68.31% -0.164 0.124)
OKLCH	oklch(68.31% 0.206 142.9)
XYZ	xyz(18.7533, 34.7396, 8.6222)
Luminance	0.3474 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B731 #B731B7

analogous

#74B731 #31B731 #31B774

triadic

#31B731 #3131B7 #B73131

tetradic

#31B731 #3174B7 #B731B7 #B77431

square

#31B731 #3174B7 #B731B7 #B77431

split-complementary

#31B731 #7431B7 #B73174

monochromatic

#175617 #248724 #31B731 #54D154 #84DE84

Accessibility & contrast

On white

2.64

#31B731 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.95

#31B731 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B731

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B731	#FFFFFF	#000000	##000000
##31B731	1.00	2.64	7.95	7.95
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.95	21.00	1.00	1.00
##000000	7.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA618

Deuteranopia (green-blind)

#AC9B3F

Tritanopia (blue-blind)

#00B29D

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b731;
/* rgb */ color: rgb(49, 183, 49);
/* oklch */ color: oklch(68.3% 0.206 142.9);

Tailwind

colors: {
  custom: {
    50: '#7ece72',
    500: '#31b731',
    950: '#000000',
  },
}

SCSS

$custom: #31b731;
$custom-light: #7ece72;
$custom-dark: #000000;

JSON

{
  "hex": "#31b731",
  "rgb": {
    "r": 49,
    "g": 183,
    "b": 49
  },
  "hsl": {
    "h": 120,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.68314,
    "c": 0.20557,
    "h": 142.9
  },
  "luminance": 0.34742
}

Semantic roles & 50–950 ramp

primary

#31B731

secondary

#C87CC8

accent

#47E1E1

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0B1408

muted

#7C827B

Preview Lab

Preview with #31B731

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

Preview Lab → · Contrast checker → · Palette generator →