#31B531#31B531

#31B531 is a light, highly saturated green. Relative luminance 0.339; OKLCH L 67.8% C 0.203 H 142.9°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#31B531
RGB	rgb(49, 181, 49)
HSL	hsl(120, 57%, 45%)
HSV	hsv(120, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 72.9%, 29%)
CIE-LAB	lab(64.90, -59.76, 54.05)
CIE-LCH	lch(64.90, 80.58, 137.87°)
OKLab	oklab(67.78% -0.1622 0.1226)
OKLCH	oklch(67.78% 0.203 142.9)
XYZ	xyz(18.3438, 33.9204, 8.4857)
Luminance	0.3392 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B531 #B531B5

analogous

#73B531 #31B531 #31B573

triadic

#31B531 #3131B5 #B53131

tetradic

#31B531 #3173B5 #B531B5 #B57331

square

#31B531 #3173B5 #B531B5 #B57331

split-complementary

#31B531 #7331B5 #B53173

monochromatic

#175517 #248524 #31B531 #53D053 #83DD83

Accessibility & contrast

On white

2.70

#31B531 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#31B531 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B531

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B531	#FFFFFF	#000000	##000000
##31B531	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A419

Deuteranopia (green-blind)

#AA993F

Tritanopia (blue-blind)

#00B09B

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #31b531;
/* rgb */ color: rgb(49, 181, 49);
/* oklch */ color: oklch(67.8% 0.203 142.9);

Tailwind

colors: {
  custom: {
    50: '#7ecc71',
    500: '#31b531',
    950: '#000000',
  },
}

SCSS

$custom: #31b531;
$custom-light: #7ecc71;
$custom-dark: #000000;

JSON

{
  "hex": "#31b531",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 49
  },
  "hsl": {
    "h": 120,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.67777,
    "c": 0.20334,
    "h": 142.9
  },
  "luminance": 0.33922
}

Semantic roles & 50–950 ramp

primary

#31B531

secondary

#C77BC7

accent

#47E1E1

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0B1408

muted

#7C827B

Preview Lab

Preview with #31B531

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

Preview Lab → · Contrast checker → · Palette generator →