#31B155#31B155

#31B155 is a light, vivid green. Relative luminance 0.328; OKLCH L 67.1% C 0.171 H 148.5°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#31B155
RGB	rgb(49, 177, 85)
HSL	hsl(137, 57%, 44%)
HSV	hsv(137, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 52%, 30.6%)
CIE-LAB	lab(63.96, -54.22, 37.08)
CIE-LCH	lch(63.96, 65.69, 145.64°)
OKLab	oklab(67.11% -0.1459 0.0895)
OKLCH	oklch(67.11% 0.171 148.5)
XYZ	xyz(18.6270, 32.7510, 13.9325)
Luminance	0.3275 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B155 #B1318D

analogous

#4DB131 #31B155 #31B195

triadic

#31B155 #5531B1 #B15531

tetradic

#31B155 #314DB1 #B1318D #B19531

square

#31B155 #314DB1 #B1318D #B19531

split-complementary

#31B155 #9531B1 #B1314D

monochromatic

#165127 #24813E #31B155 #51CF74 #80DC9A

Accessibility & contrast

On white

2.78

#31B155 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#31B155 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B155

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B155	#FFFFFF	#000000	##000000
##31B155	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A14D

Deuteranopia (green-blind)

#A4975C

Tritanopia (blue-blind)

#00AD9C

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b155;
/* rgb */ color: rgb(49, 177, 85);
/* oklch */ color: oklch(67.1% 0.171 148.5);

Tailwind

colors: {
  custom: {
    50: '#7bc987',
    500: '#31b155',
    950: '#000000',
  },
}

SCSS

$custom: #31b155;
$custom-light: #7bc987;
$custom-dark: #000000;

JSON

{
  "hex": "#31b155",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 85
  },
  "hsl": {
    "h": 136.875,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.67111,
    "c": 0.17119,
    "h": 148.5
  },
  "luminance": 0.32753
}

Semantic roles & 50–950 ramp

primary

#31B155

secondary

#C579B0

accent

#48B5E0

background

#F8FCF8

surface

#EFF8EF

border

#CAD1CA

text

#0B130B

muted

#7C827C

Preview Lab

Preview with #31B155

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

Preview Lab → · Contrast checker → · Palette generator →