#31B140#31B140

#31B140 is a light, vivid green. Relative luminance 0.325; OKLCH L 66.8% C 0.189 H 144.7°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#31B140
RGB	rgb(49, 177, 64)
HSL	hsl(127, 57%, 44%)
HSV	hsv(127, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 63.8%, 30.6%)
CIE-LAB	lab(63.73, -56.98, 46.71)
CIE-LCH	lch(63.73, 73.68, 140.66°)
OKLab	oklab(66.84% -0.154 0.1089)
OKLCH	oklch(66.84% 0.189 144.7)
XYZ	xyz(17.9130, 32.4654, 10.1719)
Luminance	0.3247 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B140 #B131A2

analogous

#62B131 #31B140 #31B180

triadic

#31B140 #4031B1 #B14031

tetradic

#31B140 #3162B1 #B131A2 #B18031

square

#31B140 #3162B1 #B131A2 #B18031

split-complementary

#31B140 #8031B1 #B13162

monochromatic

#16511D #24812F #31B140 #51CF5F #80DC8B

Accessibility & contrast

On white

2.80

#31B140 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#31B140 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B140

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B140	#FFFFFF	#000000	##000000
##31B140	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A133

Deuteranopia (green-blind)

#A5964A

Tritanopia (blue-blind)

#00AC99

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b140;
/* rgb */ color: rgb(49, 177, 64);
/* oklch */ color: oklch(66.8% 0.189 144.7);

Tailwind

colors: {
  custom: {
    50: '#7cc979',
    500: '#31b140',
    950: '#000000',
  },
}

SCSS

$custom: #31b140;
$custom-light: #7cc979;
$custom-dark: #000000;

JSON

{
  "hex": "#31b140",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 64
  },
  "hsl": {
    "h": 127.031,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.66842,
    "c": 0.18859,
    "h": 144.7
  },
  "luminance": 0.32467
}

Semantic roles & 50–950 ramp

primary

#31B140

secondary

#C579BC

accent

#48CEE0

background

#F8FCF7

surface

#EFF8EE

border

#CAD1C9

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #31B140

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

Preview Lab → · Contrast checker → · Palette generator →