#31B437#31B437

#31B437 is a light, vivid green. Relative luminance 0.336; OKLCH L 67.6% C 0.198 H 143.5°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#31B437
RGB	rgb(49, 180, 55)
HSL	hsl(123, 57%, 45%)
HSV	hsv(123, 73%, 71%)
CMYK	cmyk(72.8%, 0%, 69.4%, 29.4%)
CIE-LAB	lab(64.62, -58.90, 51.46)
CIE-LCH	lch(64.62, 78.22, 138.86°)
OKLab	oklab(67.56% -0.1596 0.1179)
OKLCH	oklch(67.56% 0.198 143.5)
XYZ	xyz(18.2763, 33.5693, 9.1300)
Luminance	0.3357 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B437 #B431AE

analogous

#6DB431 #31B437 #31B478

triadic

#31B437 #3731B4 #B43731

tetradic

#31B437 #316DB4 #B431AE #B47831

square

#31B437 #316DB4 #B431AE #B47831

split-complementary

#31B437 #7831B4 #B4316D

monochromatic

#17541A #248428 #31B437 #52D058 #82DD86

Accessibility & contrast

On white

2.72

#31B437 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#31B437 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B437

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B437	#FFFFFF	#000000	##000000
##31B437	1.00	2.72	7.71	7.71
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A325

Deuteranopia (green-blind)

#A99943

Tritanopia (blue-blind)

#00AF9B

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #31b437;
/* rgb */ color: rgb(49, 180, 55);
/* oklch */ color: oklch(67.6% 0.198 143.5);

Tailwind

colors: {
  custom: {
    50: '#7dcc74',
    500: '#31b437',
    950: '#000000',
  },
}

SCSS

$custom: #31b437;
$custom-light: #7dcc74;
$custom-dark: #000000;

JSON

{
  "hex": "#31b437",
  "rgb": {
    "r": 49,
    "g": 180,
    "b": 55
  },
  "hsl": {
    "h": 122.748,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.67559,
    "c": 0.19845,
    "h": 143.5
  },
  "luminance": 0.33571
}

Semantic roles & 50–950 ramp

primary

#31B437

secondary

#C67BC3

accent

#47D9E0

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B437

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

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