#51CF3B#51CF3B

#51CF3B is a light, highly saturated green. Relative luminance 0.467; OKLCH L 75.6% C 0.216 H 141.0°. Best body text is #000000 at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#51CF3B
RGB	rgb(81, 207, 59)
HSL	hsl(111, 61%, 52%)
HSV	hsv(111, 71%, 81%)
CMYK	cmyk(60.9%, 0%, 71.5%, 18.8%)
CIE-LAB	lab(73.99, -61.27, 59.93)
CIE-LCH	lch(73.99, 85.71, 135.63°)
OKLab	oklab(75.55% -0.1676 0.1359)
OKLCH	oklch(75.55% 0.216 141)
XYZ	xyz(26.4943, 46.6883, 11.7524)
Luminance	0.4669 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CF3B #B93BCF

analogous

#9BCF3B #51CF3B #3BCF6F

triadic

#51CF3B #3B51CF #CF3B51

tetradic

#51CF3B #3B9BCF #B93BCF #CF6F3B

square

#51CF3B #3B9BCF #B93BCF #CF6F3B

split-complementary

#51CF3B #6F3BCF #CF3B9B

monochromatic

#29731C #3BA528 #51CF3B #7DDB6C #A8E79D

Accessibility & contrast

On white

2.03

#51CF3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.34

#51CF3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CF3B

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CF3B	#FFFFFF	#000000	##000000
##51CF3B	1.00	2.03	10.34	10.34
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.34	21.00	1.00	1.00
##000000	10.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC22

Deuteranopia (green-blind)

#C5B24A

Tritanopia (blue-blind)

#3EC8B2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #51cf3b;
/* rgb */ color: rgb(81, 207, 59);
/* oklch */ color: oklch(75.6% 0.216 141.0);

Tailwind

colors: {
  custom: {
    50: '#90df7a',
    500: '#51cf3b',
    950: '#000000',
  },
}

SCSS

$custom: #51cf3b;
$custom-light: #90df7a;
$custom-dark: #000000;

JSON

{
  "hex": "#51cf3b",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 59
  },
  "hsl": {
    "h": 111.081,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.75552,
    "c": 0.21577,
    "h": 141
  },
  "luminance": 0.46691
}

Semantic roles & 50–950 ramp

primary

#51CF3B

secondary

#CA93D3

accent

#44E4CC

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51CF3B

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

Preview Lab → · Contrast checker → · Palette generator →