#31B145#31B145

#31B145 is a light, vivid green. Relative luminance 0.325; OKLCH L 66.9% C 0.185 H 145.5°. Best body text is #000000 at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#31B145
RGB	rgb(49, 177, 69)
HSL	hsl(129, 57%, 44%)
HSV	hsv(129, 72%, 69%)
CMYK	cmyk(72.3%, 0%, 61%, 30.6%)
CIE-LAB	lab(63.77, -56.40, 44.52)
CIE-LCH	lch(63.77, 71.85, 141.71°)
OKLab	oklab(66.9% -0.1522 0.1047)
OKLCH	oklch(66.9% 0.185 145.5)
XYZ	xyz(18.0617, 32.5249, 10.9551)
Luminance	0.3253 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B145 #B1319D

analogous

#5DB131 #31B145 #31B185

triadic

#31B145 #4531B1 #B14531

tetradic

#31B145 #315DB1 #B1319D #B18531

square

#31B145 #315DB1 #B1319D #B18531

split-complementary

#31B145 #8531B1 #B1315D

monochromatic

#165120 #248132 #31B145 #51CF64 #80DC8F

Accessibility & contrast

On white

2.80

#31B145 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.51

#31B145 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B145

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B145	#FFFFFF	#000000	##000000
##31B145	1.00	2.80	7.51	7.51
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.51	21.00	1.00	1.00
##000000	7.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A139

Deuteranopia (green-blind)

#A5964E

Tritanopia (blue-blind)

#00AD9A

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #31b145;
/* rgb */ color: rgb(49, 177, 69);
/* oklch */ color: oklch(66.9% 0.185 145.5);

Tailwind

colors: {
  custom: {
    50: '#7cc97c',
    500: '#31b145',
    950: '#000000',
  },
}

SCSS

$custom: #31b145;
$custom-light: #7cc97c;
$custom-dark: #000000;

JSON

{
  "hex": "#31b145",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 69
  },
  "hsl": {
    "h": 129.375,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.66898,
    "c": 0.18473,
    "h": 145.5
  },
  "luminance": 0.32527
}

Semantic roles & 50–950 ramp

primary

#31B145

secondary

#C579B9

accent

#48C8E0

background

#F8FCF7

surface

#EFF8EE

border

#CAD1C9

text

#0B130A

muted

#7C827C

Preview Lab

Preview with #31B145

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

Preview Lab → · Contrast checker → · Palette generator →