#31B571#31B571

#31B571 is a light, vivid green. Relative luminance 0.349; OKLCH L 68.7% C 0.151 H 155.7°. Best body text is #000000 at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#31B571
RGB	rgb(49, 181, 113)
HSL	hsl(149, 57%, 45%)
HSV	hsv(149, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 37.6%, 29%)
CIE-LAB	lab(65.66, -50.84, 24.77)
CIE-LCH	lch(65.66, 56.55, 154.02°)
OKLab	oklab(68.66% -0.1374 0.062)
OKLCH	oklch(68.66% 0.151 155.7)
XYZ	xyz(20.7692, 34.8906, 21.2595)
Luminance	0.3489 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B571 #B53175

analogous

#33B531 #31B571 #31B5B3

triadic

#31B571 #7131B5 #B57131

tetradic

#31B571 #3133B5 #B53175 #B5B331

square

#31B571 #3133B5 #B53175 #B5B331

split-complementary

#31B571 #B331B5 #B53133

monochromatic

#175535 #248553 #31B571 #53D090 #83DDAF

Accessibility & contrast

On white

2.63

#31B571 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.98

#31B571 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B571

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B571	#FFFFFF	#000000	##000000
##31B571	1.00	2.63	7.98	7.98
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.98	21.00	1.00	1.00
##000000	7.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A66C

Deuteranopia (green-blind)

#A49B75

Tritanopia (blue-blind)

#00B3A4

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #31b571;
/* rgb */ color: rgb(49, 181, 113);
/* oklch */ color: oklch(68.7% 0.151 155.7);

Tailwind

colors: {
  custom: {
    50: '#7ccc9a',
    500: '#31b571',
    950: '#000000',
  },
}

SCSS

$custom: #31b571;
$custom-light: #7ccc9a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b571",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 113
  },
  "hsl": {
    "h": 149.091,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68658,
    "c": 0.15071,
    "h": 155.7
  },
  "luminance": 0.34893
}

Semantic roles & 50–950 ramp

primary

#31B571

secondary

#C77BA2

accent

#4796E1

background

#F8FCF9

surface

#EFF9F2

border

#CAD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #31B571

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

Preview Lab → · Contrast checker → · Palette generator →