#31B057#31B057

#31B057 is a light, vivid green. Relative luminance 0.324; OKLCH L 66.9% C 0.168 H 149.0°. Best body text is #000000 at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#31B057
RGB	rgb(49, 176, 87)
HSL	hsl(138, 56%, 44%)
HSV	hsv(138, 72%, 69%)
CMYK	cmyk(72.2%, 0%, 50.6%, 31%)
CIE-LAB	lab(63.66, -53.56, 35.71)
CIE-LCH	lch(63.66, 64.37, 146.30°)
OKLab	oklab(66.88% -0.1441 0.0866)
OKLCH	oklch(66.88% 0.168 149)
XYZ	xyz(18.5108, 32.3897, 14.2913)
Luminance	0.3239 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B057 #B0318A

analogous

#4BB031 #31B057 #31B097

triadic

#31B057 #5731B0 #B05731

tetradic

#31B057 #314BB0 #B0318A #B09731

square

#31B057 #314BB0 #B0318A #B09731

split-complementary

#31B057 #9731B0 #B0314B

monochromatic

#165028 #24803F #31B057 #50CE76 #80DC9B

Accessibility & contrast

On white

2.81

#31B057 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.48

#31B057 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B057

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B057	#FFFFFF	#000000	##000000
##31B057	1.00	2.81	7.48	7.48
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.48	21.00	1.00	1.00
##000000	7.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1A150

Deuteranopia (green-blind)

#A2965D

Tritanopia (blue-blind)

#00AD9B

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b057;
/* rgb */ color: rgb(49, 176, 87);
/* oklch */ color: oklch(66.9% 0.168 149.0);

Tailwind

colors: {
  custom: {
    50: '#7bc988',
    500: '#31b057',
    950: '#000000',
  },
}

SCSS

$custom: #31b057;
$custom-light: #7bc988;
$custom-dark: #000000;

JSON

{
  "hex": "#31b057",
  "rgb": {
    "r": 49,
    "g": 176,
    "b": 87
  },
  "hsl": {
    "h": 137.953,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.66875,
    "c": 0.16812,
    "h": 149
  },
  "luminance": 0.32392
}

Semantic roles & 50–950 ramp

primary

#31B057

secondary

#C578AE

accent

#48B2E0

background

#F8FCF8

surface

#EFF8F0

border

#CAD1CB

text

#0B130B

muted

#7C827C

Preview Lab

Preview with #31B057

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

Preview Lab → · Contrast checker → · Palette generator →