#31B238#31B238

#31B238 is a light, vivid green. Relative luminance 0.328; OKLCH L 67.0% C 0.195 H 143.7°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#31B238
RGB	rgb(49, 178, 56)
HSL	hsl(123, 57%, 45%)
HSV	hsv(123, 72%, 70%)
CMYK	cmyk(72.5%, 0%, 68.5%, 30.2%)
CIE-LAB	lab(63.98, -58.14, 50.38)
CIE-LCH	lch(63.98, 76.93, 139.09°)
OKLab	oklab(67.03% -0.1575 0.1158)
OKLCH	oklch(67.03% 0.195 143.7)
XYZ	xyz(17.8997, 32.7773, 9.1239)
Luminance	0.3278 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B238 #B231AB

analogous

#6BB231 #31B238 #31B279

triadic

#31B238 #3831B2 #B23831

tetradic

#31B238 #316BB2 #B231AB #B27931

square

#31B238 #316BB2 #B231AB #B27931

split-complementary

#31B238 #7931B2 #B2316B

monochromatic

#17521A #248229 #31B238 #51CF58 #81DC86

Accessibility & contrast

On white

2.78

#31B238 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#31B238 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B238

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B238	#FFFFFF	#000000	##000000
##31B238	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)

#B6A127

Deuteranopia (green-blind)

#A79744

Tritanopia (blue-blind)

#00AD99

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b238;
/* rgb */ color: rgb(49, 178, 56);
/* oklch */ color: oklch(67.0% 0.195 143.7);

Tailwind

colors: {
  custom: {
    50: '#7dca75',
    500: '#31b238',
    950: '#000000',
  },
}

SCSS

$custom: #31b238;
$custom-light: #7dca75;
$custom-dark: #000000;

JSON

{
  "hex": "#31b238",
  "rgb": {
    "r": 49,
    "g": 178,
    "b": 56
  },
  "hsl": {
    "h": 123.256,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.67031,
    "c": 0.19548,
    "h": 143.7
  },
  "luminance": 0.32779
}

Semantic roles & 50–950 ramp

primary

#31B238

secondary

#C579C1

accent

#48D8E0

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B238

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

Preview Lab → · Contrast checker → · Palette generator →