#31B559#31B559

#31B559 is a light, vivid green. Relative luminance 0.344; OKLCH L 68.2% C 0.173 H 149.0°. Best body text is #000000 at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#31B559
RGB	rgb(49, 181, 89)
HSL	hsl(138, 57%, 45%)
HSV	hsv(138, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 50.8%, 29%)
CIE-LAB	lab(65.29, -55.05, 36.73)
CIE-LCH	lch(65.29, 66.18, 146.29°)
OKLab	oklab(68.23% -0.1481 0.089)
OKLCH	oklch(68.23% 0.173 149)
XYZ	xyz(19.5921, 34.4197, 15.0604)
Luminance	0.3442 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B559 #B5318D

analogous

#4BB531 #31B559 #31B59B

triadic

#31B559 #5931B5 #B55931

tetradic

#31B559 #314BB5 #B5318D #B59B31

square

#31B559 #314BB5 #B5318D #B59B31

split-complementary

#31B559 #9B31B5 #B5314B

monochromatic

#17552A #248541 #31B559 #53D079 #83DD9E

Accessibility & contrast

On white

2.66

#31B559 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.88

#31B559 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B559

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B559	#FFFFFF	#000000	##000000
##31B559	1.00	2.66	7.88	7.88
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.88	21.00	1.00	1.00
##000000	7.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A551

Deuteranopia (green-blind)

#A79A60

Tritanopia (blue-blind)

#00B2A0

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #31b559;
/* rgb */ color: rgb(49, 181, 89);
/* oklch */ color: oklch(68.2% 0.173 149.0);

Tailwind

colors: {
  custom: {
    50: '#7ccc8a',
    500: '#31b559',
    950: '#000000',
  },
}

SCSS

$custom: #31b559;
$custom-light: #7ccc8a;
$custom-dark: #000000;

JSON

{
  "hex": "#31b559",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 89
  },
  "hsl": {
    "h": 138.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68232,
    "c": 0.17276,
    "h": 149
  },
  "luminance": 0.34422
}

Semantic roles & 50–950 ramp

primary

#31B559

secondary

#C77BB0

accent

#47B2E1

background

#F8FCF8

surface

#EFF9F0

border

#CAD2CB

text

#0B130C

muted

#7C827D

Preview Lab

Preview with #31B559

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

Preview Lab → · Contrast checker → · Palette generator →