#51E255#51E255

#51E255 is a light, highly saturated green. Relative luminance 0.568; OKLCH L 80.6% C 0.221 H 143.6°. Best body text is #000000 at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#51E255
RGB	rgb(81, 226, 85)
HSL	hsl(122, 71%, 60%)
HSV	hsv(122, 64%, 89%)
CMYK	cmyk(64.2%, 0%, 62.4%, 11.4%)
CIE-LAB	lab(80.06, -65.41, 56.15)
CIE-LCH	lch(80.06, 86.21, 139.35°)
OKLab	oklab(80.64% -0.1775 0.1309)
OKLCH	oklch(80.64% 0.221 143.6)
XYZ	xyz(32.2275, 56.7947, 17.8567)
Luminance	0.5680 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E255 #E251DE

analogous

#96E251 #51E255 #51E29D

triadic

#51E255 #5551E2 #E25551

tetradic

#51E255 #5196E2 #E251DE #E29D51

square

#51E255 #5196E2 #E251DE #E29D51

split-complementary

#51E255 #9D51E2 #E25196

monochromatic

#1A9E1E #23D328 #51E255 #85EB88 #BAF3BC

Accessibility & contrast

On white

1.70

#51E255 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.36

#51E255 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E255

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E255	#FFFFFF	#000000	##000000
##51E255	1.00	1.70	12.36	12.36
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.36	21.00	1.00	1.00
##000000	12.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6CE44

Deuteranopia (green-blind)

#D5C261

Tritanopia (blue-blind)

#2FDCC4

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e255;
/* rgb */ color: rgb(81, 226, 85);
/* oklch */ color: oklch(80.6% 0.221 143.6);

Tailwind

colors: {
  custom: {
    50: '#92ec8a',
    500: '#51e255',
    950: '#000000',
  },
}

SCSS

$custom: #51e255;
$custom-light: #92ec8a;
$custom-dark: #000000;

JSON

{
  "hex": "#51e255",
  "rgb": {
    "r": 81,
    "g": 226,
    "b": 85
  },
  "hsl": {
    "h": 121.655,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.8064,
    "c": 0.22051,
    "h": 143.6
  },
  "luminance": 0.56798
}

Semantic roles & 50–950 ramp

primary

#51E255

secondary

#A1369E

accent

#12CED3

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160C

muted

#7F857F

Preview Lab

Preview with #51E255

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

Preview Lab → · Contrast checker → · Palette generator →