#51D66E#51D66E

#51D66E is a light, vivid green. Relative luminance 0.510; OKLCH L 77.9% C 0.185 H 147.8°. Best body text is #000000 at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#51D66E
RGB	rgb(81, 214, 110)
HSL	hsl(133, 62%, 58%)
HSV	hsv(133, 62%, 84%)
CMYK	cmyk(62.1%, 0%, 48.6%, 16.1%)
CIE-LAB	lab(76.66, -58.00, 40.66)
CIE-LCH	lch(76.66, 70.83, 144.97°)
OKLab	oklab(77.92% -0.1567 0.0988)
OKLCH	oklch(77.92% 0.185 147.8)
XYZ	xyz(30.2523, 50.9652, 22.9918)
Luminance	0.5097 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D66E #D651B9

analogous

#76D651 #51D66E #51D6B1

triadic

#51D66E #6E51D6 #D66E51

tetradic

#51D66E #5176D6 #D651B9 #D6B151

square

#51D66E #5176D6 #D651B9 #D6B151

split-complementary

#51D66E #B151D6 #D65176

monochromatic

#218C38 #2DBD4C #51D66E #83E297 #B4EDC1

Accessibility & contrast

On white

1.88

#51D66E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.19

#51D66E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D66E

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D66E	#FFFFFF	#000000	##000000
##51D66E	1.00	1.88	11.19	11.19
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.19	21.00	1.00	1.00
##000000	11.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C465

Deuteranopia (green-blind)

#C7B975

Tritanopia (blue-blind)

#2BD2BE

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51d66e;
/* rgb */ color: rgb(81, 214, 110);
/* oklch */ color: oklch(77.9% 0.185 147.8);

Tailwind

colors: {
  custom: {
    50: '#8fe499',
    500: '#51d66e',
    950: '#000000',
  },
}

SCSS

$custom: #51d66e;
$custom-light: #8fe499;
$custom-dark: #000000;

JSON

{
  "hex": "#51d66e",
  "rgb": {
    "r": 81,
    "g": 214,
    "b": 110
  },
  "hsl": {
    "h": 133.083,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.77917,
    "c": 0.18518,
    "h": 147.8
  },
  "luminance": 0.50968
}

Semantic roles & 50–950 ramp

primary

#51D66E

secondary

#923A7E

accent

#43C2E5

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E160E

muted

#7F847F

Preview Lab

Preview with #51D66E

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

Preview Lab → · Contrast checker → · Palette generator →