#31B157#31B157

#31B157 is a light, vivid green. Relative luminance 0.328; OKLCH L 67.1% C 0.169 H 148.9°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#31B157
RGB	rgb(49, 177, 87)
HSL	hsl(138, 57%, 44%)
HSV	hsv(138, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 50.8%, 30.6%)
CIE-LAB	lab(63.99, -53.92, 36.11)
CIE-LCH	lch(63.99, 64.89, 146.19°)
OKLab	oklab(67.14% -0.1451 0.0875)
OKLCH	oklch(67.14% 0.169 148.9)
XYZ	xyz(18.7076, 32.7833, 14.3569)
Luminance	0.3278 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B157 #B1318B

analogous

#4BB131 #31B157 #31B197

triadic

#31B157 #5731B1 #B15731

tetradic

#31B157 #314BB1 #B1318B #B19731

square

#31B157 #314BB1 #B1318B #B19731

split-complementary

#31B157 #9731B1 #B1314B

monochromatic

#165128 #24813F #31B157 #51CF76 #80DC9C

Accessibility & contrast

On white

2.78

#31B157 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#31B157 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B157

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B157	#FFFFFF	#000000	##000000
##31B157	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A14F

Deuteranopia (green-blind)

#A3975E

Tritanopia (blue-blind)

#00AE9C

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b157;
/* rgb */ color: rgb(49, 177, 87);
/* oklch */ color: oklch(67.1% 0.169 148.9);

Tailwind

colors: {
  custom: {
    50: '#7bc988',
    500: '#31b157',
    950: '#000000',
  },
}

SCSS

$custom: #31b157;
$custom-light: #7bc988;
$custom-dark: #000000;

JSON

{
  "hex": "#31b157",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 87
  },
  "hsl": {
    "h": 137.813,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.67141,
    "c": 0.16941,
    "h": 148.9
  },
  "luminance": 0.32785
}

Semantic roles & 50–950 ramp

primary

#31B157

secondary

#C579AE

accent

#48B3E0

background

#F8FCF8

surface

#EFF8F0

border

#CAD1CB

text

#0B130B

muted

#7C827C

Preview Lab

Preview with #31B157

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

Preview Lab → · Contrast checker → · Palette generator →