#31B451#31B451

#31B451 is a light, vivid green. Relative luminance 0.339; OKLCH L 67.9% C 0.179 H 147.4°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#31B451
RGB	rgb(49, 180, 81)
HSL	hsl(135, 57%, 45%)
HSV	hsv(135, 73%, 71%)
CMYK	cmyk(72.8%, 0%, 55%, 29.4%)
CIE-LAB	lab(64.87, -55.87, 40.16)
CIE-LCH	lch(64.87, 68.80, 144.29°)
OKLab	oklab(67.85% -0.1504 0.0961)
OKLCH	oklch(67.85% 0.179 147.4)
XYZ	xyz(19.0717, 33.8874, 13.3188)
Luminance	0.3389 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B451 #B43194

analogous

#53B431 #31B451 #31B492

triadic

#31B451 #5131B4 #B45131

tetradic

#31B451 #3153B4 #B43194 #B49231

square

#31B451 #3153B4 #B43194 #B49231

split-complementary

#31B451 #9231B4 #B43153

monochromatic

#175426 #24843B #31B451 #52D071 #82DD98

Accessibility & contrast

On white

2.70

#31B451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#31B451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B451

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B451	#FFFFFF	#000000	##000000
##31B451	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A448

Deuteranopia (green-blind)

#A79959

Tritanopia (blue-blind)

#00B09E

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #31b451;
/* rgb */ color: rgb(49, 180, 81);
/* oklch */ color: oklch(67.9% 0.179 147.4);

Tailwind

colors: {
  custom: {
    50: '#7ccc84',
    500: '#31b451',
    950: '#000000',
  },
}

SCSS

$custom: #31b451;
$custom-light: #7ccc84;
$custom-dark: #000000;

JSON

{
  "hex": "#31b451",
  "rgb": {
    "r": 49,
    "g": 180,
    "b": 81
  },
  "hsl": {
    "h": 134.656,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.67851,
    "c": 0.17851,
    "h": 147.4
  },
  "luminance": 0.3389
}

Semantic roles & 50–950 ramp

primary

#31B451

secondary

#C67BB4

accent

#47BBE0

background

#F8FCF8

surface

#EFF9EF

border

#CAD2CA

text

#0B130B

muted

#7C827C

Preview Lab

Preview with #31B451

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

Preview Lab → · Contrast checker → · Palette generator →