#31B545#31B545

#31B545 is a light, vivid green. Relative luminance 0.341; OKLCH L 68.0% C 0.190 H 145.3°. Best body text is #000000 at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#31B545
RGB	rgb(49, 181, 69)
HSL	hsl(129, 57%, 45%)
HSV	hsv(129, 73%, 71%)
CMYK	cmyk(72.9%, 0%, 61.9%, 29%)
CIE-LAB	lab(65.06, -57.76, 45.99)
CIE-LCH	lch(65.06, 73.84, 141.47°)
OKLab	oklab(67.97% -0.1559 0.1078)
OKLCH	oklch(67.97% 0.19 145.3)
XYZ	xyz(18.8634, 34.1283, 11.2223)
Luminance	0.3413 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B545 #B531A1

analogous

#5FB531 #31B545 #31B587

triadic

#31B545 #4531B5 #B54531

tetradic

#31B545 #315FB5 #B531A1 #B58731

square

#31B545 #315FB5 #B531A1 #B58731

split-complementary

#31B545 #8731B5 #B5315F

monochromatic

#175520 #248533 #31B545 #53D066 #83DD91

Accessibility & contrast

On white

2.68

#31B545 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.83

#31B545 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B545

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B545	#FFFFFF	#000000	##000000
##31B545	1.00	2.68	7.83	7.83
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.83	21.00	1.00	1.00
##000000	7.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A439

Deuteranopia (green-blind)

#A99A4E

Tritanopia (blue-blind)

#00B09D

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #31b545;
/* rgb */ color: rgb(49, 181, 69);
/* oklch */ color: oklch(68.0% 0.190 145.3);

Tailwind

colors: {
  custom: {
    50: '#7dcc7d',
    500: '#31b545',
    950: '#000000',
  },
}

SCSS

$custom: #31b545;
$custom-light: #7dcc7d;
$custom-dark: #000000;

JSON

{
  "hex": "#31b545",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 69
  },
  "hsl": {
    "h": 129.091,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.67967,
    "c": 0.18958,
    "h": 145.3
  },
  "luminance": 0.3413
}

Semantic roles & 50–950 ramp

primary

#31B545

secondary

#C77BBB

accent

#47C9E1

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0B130A

muted

#7C827C

Preview Lab

Preview with #31B545

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

Preview Lab → · Contrast checker → · Palette generator →