#51FF4E#51FF4E

#51FF4E is a very light, highly saturated green. Relative luminance 0.738; OKLCH L 87.9% C 0.258 H 142.8°. Best body text is #000000 at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#51FF4E
RGB	rgb(81, 255, 78)
HSL	hsl(119, 100%, 65%)
HSV	hsv(119, 69%, 100%)
CMYK	cmyk(68.2%, 0%, 69.4%, 0%)
CIE-LAB	lab(88.83, -75.54, 68.37)
CIE-LCH	lch(88.83, 101.89, 137.86°)
OKLab	oklab(87.89% -0.2052 0.1559)
OKLCH	oklch(87.89% 0.258 142.8)
XYZ	xyz(40.5261, 73.8150, 19.3182)
Luminance	0.7382 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51FF4E #FC4EFF

analogous

#A9FF4E #51FF4E #4EFFA3

triadic

#51FF4E #4E51FF #FF4E51

tetradic

#51FF4E #4EA9FF #FC4EFF #FFA34E

square

#51FF4E #4EA9FF #FC4EFF #FFA34E

split-complementary

#51FF4E #A34EFF #FF4EA9

monochromatic

#04D300 #15FF11 #51FF4E #8DFF8B #C9FFC8

Accessibility & contrast

On white

1.33

#51FF4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.76

#51FF4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51FF4E

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51FF4E	#FFFFFF	#000000	##000000
##51FF4E	1.00	1.33	15.76	15.76
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.76	21.00	1.00	1.00
##000000	15.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE832

Deuteranopia (green-blind)

#F0DA60

Tritanopia (blue-blind)

#1EF8DC

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #51ff4e;
/* rgb */ color: rgb(81, 255, 78);
/* oklch */ color: oklch(87.9% 0.258 142.8);

Tailwind

colors: {
  custom: {
    50: '#98ff88',
    500: '#51ff4e',
    950: '#000000',
  },
}

SCSS

$custom: #51ff4e;
$custom-light: #98ff88;
$custom-dark: #000000;

JSON

{
  "hex": "#51ff4e",
  "rgb": {
    "r": 81,
    "g": 255,
    "b": 78
  },
  "hsl": {
    "h": 118.983,
    "s": 100,
    "l": 65.294
  },
  "oklch": {
    "l": 0.87886,
    "c": 0.25774,
    "h": 142.8
  },
  "luminance": 0.73819
}

Semantic roles & 50–950 ramp

primary

#51FF4E

secondary

#CA24CD

accent

#00E6E2

background

#FCFFFC

surface

#F6FFF4

border

#D0D7CE

text

#10180C

muted

#80867F

Preview Lab

Preview with #51FF4E

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

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