#51CC55#51CC55

#51CC55 is a light, vivid green. Relative luminance 0.456; OKLCH L 75.0% C 0.194 H 143.9°. Best body text is #000000 at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#51CC55
RGB	rgb(81, 204, 85)
HSL	hsl(122, 55%, 56%)
HSV	hsv(122, 60%, 80%)
CMYK	cmyk(60.3%, 0%, 58.3%, 20%)
CIE-LAB	lab(73.28, -57.66, 48.41)
CIE-LCH	lch(73.28, 75.29, 139.99°)
OKLab	oklab(75.03% -0.1565 0.1143)
OKLCH	oklch(75.03% 0.194 143.9)
XYZ	xyz(26.6244, 45.5884, 15.9889)
Luminance	0.4559 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CC55 #CC51C8

analogous

#8ACC51 #51CC55 #51CC92

triadic

#51CC55 #5551CC #CC5551

tetradic

#51CC55 #518ACC #CC51C8 #CC9251

square

#51CC55 #518ACC #CC51C8 #CC9251

split-complementary

#51CC55 #9251CC #CC518A

monochromatic

#257E28 #33AD37 #51CC55 #80DA83 #B0E8B1

Accessibility & contrast

On white

2.08

#51CC55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.12

#51CC55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CC55

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CC55	#FFFFFF	#000000	##000000
##51CC55	1.00	2.08	10.12	10.12
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.12	21.00	1.00	1.00
##000000	10.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0BA49

Deuteranopia (green-blind)

#C0B05E

Tritanopia (blue-blind)

#39C7B2

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51cc55;
/* rgb */ color: rgb(81, 204, 85);
/* oklch */ color: oklch(75.0% 0.194 143.9);

Tailwind

colors: {
  custom: {
    50: '#8edc88',
    500: '#51cc55',
    950: '#000000',
  },
}

SCSS

$custom: #51cc55;
$custom-light: #8edc88;
$custom-dark: #000000;

JSON

{
  "hex": "#51cc55",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 85
  },
  "hsl": {
    "h": 121.951,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.75034,
    "c": 0.19377,
    "h": 143.9
  },
  "luminance": 0.45591
}

Semantic roles & 50–950 ramp

primary

#51CC55

secondary

#D6A3D4

accent

#4AD9DE

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0D150C

muted

#7E837D

Preview Lab

Preview with #51CC55

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

Preview Lab → · Contrast checker → · Palette generator →