#31B139#31B139

#31B139 is a light, vivid green. Relative luminance 0.324; OKLCH L 66.8% C 0.194 H 143.8°. Best body text is #000000 at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#31B139
RGB	rgb(49, 177, 57)
HSL	hsl(124, 57%, 44%)
HSV	hsv(124, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 67.8%, 30.6%)
CIE-LAB	lab(63.66, -57.71, 49.63)
CIE-LCH	lch(63.66, 76.12, 139.31°)
OKLab	oklab(66.77% -0.1563 0.1143)
OKLCH	oklch(66.77% 0.194 143.8)
XYZ	xyz(17.7261, 32.3907, 9.1879)
Luminance	0.3239 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B139 #B131A9

analogous

#69B131 #31B139 #31B179

triadic

#31B139 #3931B1 #B13931

tetradic

#31B139 #3169B1 #B131A9 #B17931

square

#31B139 #3169B1 #B131A9 #B17931

split-complementary

#31B139 #7931B1 #B13169

monochromatic

#16511A #24812A #31B139 #51CF58 #80DC86

Accessibility & contrast

On white

2.81

#31B139 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.48

#31B139 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B139

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B139	#FFFFFF	#000000	##000000
##31B139	1.00	2.81	7.48	7.48
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.48	21.00	1.00	1.00
##000000	7.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A029

Deuteranopia (green-blind)

#A69644

Tritanopia (blue-blind)

#00AC99

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b139;
/* rgb */ color: rgb(49, 177, 57);
/* oklch */ color: oklch(66.8% 0.194 143.8);

Tailwind

colors: {
  custom: {
    50: '#7cc975',
    500: '#31b139',
    950: '#000000',
  },
}

SCSS

$custom: #31b139;
$custom-light: #7cc975;
$custom-dark: #000000;

JSON

{
  "hex": "#31b139",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 57
  },
  "hsl": {
    "h": 123.75,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.66772,
    "c": 0.19363,
    "h": 143.8
  },
  "luminance": 0.32393
}

Semantic roles & 50–950 ramp

primary

#31B139

secondary

#C579C0

accent

#48D6E0

background

#F8FCF7

surface

#EFF8ED

border

#CAD1C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B139

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

Preview Lab → · Contrast checker → · Palette generator →