#31B133#31B133

#31B133 is a light, vivid green. Relative luminance 0.323; OKLCH L 66.7% C 0.198 H 143.1°. Best body text is #000000 at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#31B133
RGB	rgb(49, 177, 51)
HSL	hsl(121, 57%, 44%)
HSV	hsv(121, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 71.2%, 30.6%)
CIE-LAB	lab(63.62, -58.27, 51.98)
CIE-LCH	lch(63.62, 78.09, 138.27°)
OKLab	oklab(66.72% -0.1581 0.1185)
OKLCH	oklch(66.72% 0.198 143.1)
XYZ	xyz(17.5852, 32.3343, 8.4457)
Luminance	0.3234 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B133 #B131AF

analogous

#6FB131 #31B133 #31B173

triadic

#31B133 #3331B1 #B13331

tetradic

#31B133 #316FB1 #B131AF #B17331

square

#31B133 #316FB1 #B131AF #B17331

split-complementary

#31B133 #7331B1 #B1316F

monochromatic

#165117 #248125 #31B133 #51CF52 #80DC82

Accessibility & contrast

On white

2.81

#31B133 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.47

#31B133 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B133

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B133	#FFFFFF	#000000	##000000
##31B133	1.00	2.81	7.47	7.47
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.47	21.00	1.00	1.00
##000000	7.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A01F

Deuteranopia (green-blind)

#A69640

Tritanopia (blue-blind)

#00AC98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b133;
/* rgb */ color: rgb(49, 177, 51);
/* oklch */ color: oklch(66.7% 0.198 143.1);

Tailwind

colors: {
  custom: {
    50: '#7dc972',
    500: '#31b133',
    950: '#000000',
  },
}

SCSS

$custom: #31b133;
$custom-light: #7dc972;
$custom-dark: #000000;

JSON

{
  "hex": "#31b133",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 51
  },
  "hsl": {
    "h": 120.938,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.66719,
    "c": 0.19759,
    "h": 143.1
  },
  "luminance": 0.32336
}

Semantic roles & 50–950 ramp

primary

#31B133

secondary

#C579C4

accent

#48DEE0

background

#F8FCF7

surface

#EFF8ED

border

#CAD1C8

text

#0B1308

muted

#7C827B

Preview Lab

Preview with #31B133

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

Preview Lab → · Contrast checker → · Palette generator →