#51FF78#51FF78

#51FF78 is a very light, highly saturated green. Relative luminance 0.746; OKLCH L 88.3% C 0.228 H 147.2°. Best body text is #000000 at 15.93:1 contrast (WCAG AA passes).

Color values

HEX	#51FF78
RGB	rgb(81, 255, 120)
HSL	hsl(133, 100%, 66%)
HSV	hsv(133, 68%, 100%)
CMYK	cmyk(68.2%, 0%, 52.9%, 0%)
CIE-LAB	lab(89.22, -71.05, 51.37)
CIE-LCH	lch(89.22, 87.67, 144.13°)
OKLab	oklab(88.32% -0.1915 0.1232)
OKLCH	oklch(88.32% 0.228 147.2)
XYZ	xyz(42.5404, 74.6207, 29.9270)
Luminance	0.7462 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51FF78 #FF51D8

analogous

#81FF51 #51FF78 #51FFCF

triadic

#51FF78 #7851FF #FF7851

tetradic

#51FF78 #5181FF #FF51D8 #FFCF51

square

#51FF78 #5181FF #FF51D8 #FFCF51

split-complementary

#51FF78 #CF51FF #FF5181

monochromatic

#00D630 #14FF49 #51FF78 #8EFFA7 #CBFFD7

Accessibility & contrast

On white

1.32

#51FF78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.93

#51FF78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51FF78

15.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51FF78	#FFFFFF	#000000	##000000
##51FF78	1.00	1.32	15.93	15.93
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.93	21.00	1.00	1.00
##000000	15.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE96C

Deuteranopia (green-blind)

#EDDA82

Tritanopia (blue-blind)

#00FAE0

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #51ff78;
/* rgb */ color: rgb(81, 255, 120);
/* oklch */ color: oklch(88.3% 0.228 147.2);

Tailwind

colors: {
  custom: {
    50: '#96ffa2',
    500: '#51ff78',
    950: '#000000',
  },
}

SCSS

$custom: #51ff78;
$custom-light: #96ffa2;
$custom-dark: #000000;

JSON

{
  "hex": "#51ff78",
  "rgb": {
    "r": 81,
    "g": 255,
    "b": 120
  },
  "hsl": {
    "h": 133.448,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.88323,
    "c": 0.2277,
    "h": 147.2
  },
  "luminance": 0.74625
}

Semantic roles & 50–950 ramp

primary

#51FF78

secondary

#D025A9

accent

#00B2E6

background

#FCFFFC

surface

#F6FFF5

border

#D0D7CF

text

#0F180F

muted

#808680

Preview Lab

Preview with #51FF78

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

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