#51E66E#51E66E

#51E66E is a light, highly saturated green. Relative luminance 0.595; OKLCH L 81.9% C 0.206 H 146.9°. Best body text is #000000 at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#51E66E
RGB	rgb(81, 230, 110)
HSL	hsl(132, 75%, 61%)
HSV	hsv(132, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 52.2%, 9.8%)
CIE-LAB	lab(81.55, -63.78, 46.69)
CIE-LCH	lch(81.55, 79.05, 143.80°)
OKLab	oklab(81.95% -0.1722 0.1122)
OKLCH	oklch(81.95% 0.206 146.9)
XYZ	xyz(34.5022, 59.4652, 24.4085)
Luminance	0.5947 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E66E #E651C9

analogous

#7EE651 #51E66E #51E6B8

triadic

#51E66E #6E51E6 #E66E51

tetradic

#51E66E #517EE6 #E651C9 #E6B851

square

#51E66E #517EE6 #E651C9 #E6B851

split-complementary

#51E66E #B851E6 #E6517E

monochromatic

#18A533 #1FDA44 #51E66E #87EE9B #BCF5C7

Accessibility & contrast

On white

1.63

#51E66E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.89

#51E66E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E66E

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E66E	#FFFFFF	#000000	##000000
##51E66E	1.00	1.63	12.89	12.89
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.89	21.00	1.00	1.00
##000000	12.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D263

Deuteranopia (green-blind)

#D6C677

Tritanopia (blue-blind)

#20E1CB

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51e66e;
/* rgb */ color: rgb(81, 230, 110);
/* oklch */ color: oklch(81.9% 0.206 146.9);

Tailwind

colors: {
  custom: {
    50: '#92ef9a',
    500: '#51e66e',
    950: '#000000',
  },
}

SCSS

$custom: #51e66e;
$custom-light: #92ef9a;
$custom-dark: #000000;

JSON

{
  "hex": "#51e66e",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 110
  },
  "hsl": {
    "h": 131.678,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81949,
    "c": 0.20552,
    "h": 146.9
  },
  "luminance": 0.59469
}

Semantic roles & 50–950 ramp

primary

#51E66E

secondary

#A73491

accent

#0EB0D7

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E170E

muted

#7F857F

Preview Lab

Preview with #51E66E

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

Preview Lab → · Contrast checker → · Palette generator →