#51EF4E#51EF4E

#51EF4E is a very light, highly saturated green. Relative luminance 0.640; OKLCH L 83.9% C 0.240 H 142.8°. Best body text is #000000 at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#51EF4E
RGB	rgb(81, 239, 78)
HSL	hsl(119, 83%, 62%)
HSV	hsv(119, 67%, 94%)
CMYK	cmyk(66.1%, 0%, 67.4%, 6.3%)
CIE-LAB	lab(83.98, -70.42, 63.25)
CIE-LCH	lch(83.98, 94.66, 138.07°)
OKLab	oklab(83.86% -0.1914 0.1452)
OKLCH	oklch(83.86% 0.24 142.8)
XYZ	xyz(35.6329, 64.0287, 17.6872)
Luminance	0.6403 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EF4E #EC4EEF

analogous

#A2EF4E #51EF4E #4EEF9C

triadic

#51EF4E #4E51EF #EF4E51

tetradic

#51EF4E #4EA2EF #EC4EEF #EF9C4E

square

#51EF4E #4EA2EF #EC4EEF #EF9C4E

split-complementary

#51EF4E #9C4EEF #EF4EA2

monochromatic

#13B210 #1AEA16 #51EF4E #88F486 #BFF9BE

Accessibility & contrast

On white

1.52

#51EF4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.81

#51EF4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EF4E

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EF4E	#FFFFFF	#000000	##000000
##51EF4E	1.00	1.52	13.81	13.81
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.81	21.00	1.00	1.00
##000000	13.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4D937

Deuteranopia (green-blind)

#E1CC5D

Tritanopia (blue-blind)

#2AE8CE

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #51ef4e;
/* rgb */ color: rgb(81, 239, 78);
/* oklch */ color: oklch(83.9% 0.240 142.8);

Tailwind

colors: {
  custom: {
    50: '#95f587',
    500: '#51ef4e',
    950: '#000000',
  },
}

SCSS

$custom: #51ef4e;
$custom-light: #95f587;
$custom-dark: #000000;

JSON

{
  "hex": "#51ef4e",
  "rgb": {
    "r": 81,
    "g": 239,
    "b": 78
  },
  "hsl": {
    "h": 118.882,
    "s": 83.42,
    "l": 62.157
  },
  "oklch": {
    "l": 0.83863,
    "c": 0.2402,
    "h": 142.8
  },
  "luminance": 0.64032
}

Semantic roles & 50–950 ramp

primary

#51EF4E

secondary

#B02FB2

accent

#06E0DC

background

#FCFFFC

surface

#F5FFF4

border

#CFD7CE

text

#0F170C

muted

#80857F

Preview Lab

Preview with #51EF4E

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

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