#31B151#31B151

#31B151 is a light, vivid green. Relative luminance 0.327; OKLCH L 67.1% C 0.175 H 147.6°. Best body text is #000000 at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#31B151
RGB	rgb(49, 177, 81)
HSL	hsl(135, 57%, 44%)
HSV	hsv(135, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 54.2%, 30.6%)
CIE-LAB	lab(63.91, -54.81, 38.99)
CIE-LCH	lch(63.91, 67.26, 144.57°)
OKLab	oklab(67.05% -0.1476 0.0935)
OKLCH	oklch(67.05% 0.175 147.6)
XYZ	xyz(18.4726, 32.6892, 13.1191)
Luminance	0.3269 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B151 #B13191

analogous

#51B131 #31B151 #31B191

triadic

#31B151 #5131B1 #B15131

tetradic

#31B151 #3151B1 #B13191 #B19131

square

#31B151 #3151B1 #B13191 #B19131

split-complementary

#31B151 #9131B1 #B13151

monochromatic

#165125 #24813B #31B151 #51CF70 #80DC97

Accessibility & contrast

On white

2.79

#31B151 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.54

#31B151 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B151

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B151	#FFFFFF	#000000	##000000
##31B151	1.00	2.79	7.54	7.54
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.54	21.00	1.00	1.00
##000000	7.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A148

Deuteranopia (green-blind)

#A49758

Tritanopia (blue-blind)

#00AD9B

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #31b151;
/* rgb */ color: rgb(49, 177, 81);
/* oklch */ color: oklch(67.1% 0.175 147.6);

Tailwind

colors: {
  custom: {
    50: '#7bc984',
    500: '#31b151',
    950: '#000000',
  },
}

SCSS

$custom: #31b151;
$custom-light: #7bc984;
$custom-dark: #000000;

JSON

{
  "hex": "#31b151",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 81
  },
  "hsl": {
    "h": 135,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.67053,
    "c": 0.17472,
    "h": 147.6
  },
  "luminance": 0.32691
}

Semantic roles & 50–950 ramp

primary

#31B151

secondary

#C579B2

accent

#48BAE0

background

#F8FCF8

surface

#EFF8EF

border

#CAD1CA

text

#0B130B

muted

#7C827C

Preview Lab

Preview with #31B151

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

Preview Lab → · Contrast checker → · Palette generator →