#37CF3B#37CF3B

#37CF3B is a light, highly saturated green. Relative luminance 0.458; OKLCH L 74.9% C 0.224 H 143.2°. Best body text is #000000 at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#37CF3B
RGB	rgb(55, 207, 59)
HSL	hsl(122, 61%, 51%)
HSV	hsv(122, 73%, 81%)
CMYK	cmyk(73.4%, 0%, 71.5%, 18.8%)
CIE-LAB	lab(73.38, -66.30, 59.12)
CIE-LCH	lch(73.38, 88.83, 138.28°)
OKLab	oklab(74.88% -0.1798 0.1344)
OKLCH	oklch(74.88% 0.224 143.2)
XYZ	xyz(24.6762, 45.7508, 11.6671)
Luminance	0.4575 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37CF3B #CF37CB

analogous

#7FCF37 #37CF3B #37CF87

triadic

#37CF3B #3B37CF #CF3B37

tetradic

#37CF3B #377FCF #CF37CB #CF8737

square

#37CF3B #377FCF #CF37CB #CF8737

split-complementary

#37CF3B #8737CF #CF377F

monochromatic

#1B711D #27A22A #37CF3B #68DB6B #9AE79C

Accessibility & contrast

On white

2.07

#37CF3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.15

#37CF3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37CF3B

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37CF3B	#FFFFFF	#000000	##000000
##37CF3B	1.00	2.07	10.15	10.15
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.15	21.00	1.00	1.00
##000000	10.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BB22

Deuteranopia (green-blind)

#C2B04A

Tritanopia (blue-blind)

#00C9B2

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #37cf3b;
/* rgb */ color: rgb(55, 207, 59);
/* oklch */ color: oklch(74.9% 0.224 143.2);

Tailwind

colors: {
  custom: {
    50: '#85df79',
    500: '#37cf3b',
    950: '#000000',
  },
}

SCSS

$custom: #37cf3b;
$custom-light: #85df79;
$custom-dark: #000000;

JSON

{
  "hex": "#37cf3b",
  "rgb": {
    "r": 55,
    "g": 207,
    "b": 59
  },
  "hsl": {
    "h": 121.579,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.74876,
    "c": 0.22449,
    "h": 143.2
  },
  "luminance": 0.45754
}

Semantic roles & 50–950 ramp

primary

#37CF3B

secondary

#D28FD1

accent

#43E0E4

background

#F9FDF7

surface

#F1FBEE

border

#CBD4C9

text

#0D150A

muted

#7E837C

Preview Lab

Preview with #37CF3B

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

Preview Lab → · Contrast checker → · Palette generator →