#51E665#51E665

#51E665 is a light, highly saturated green. Relative luminance 0.593; OKLCH L 81.8% C 0.213 H 145.5°. Best body text is #000000 at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#51E665
RGB	rgb(81, 230, 101)
HSL	hsl(128, 75%, 61%)
HSV	hsv(128, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 56.1%, 9.8%)
CIE-LAB	lab(81.44, -64.96, 50.72)
CIE-LCH	lch(81.44, 82.41, 142.01°)
OKLab	oklab(81.83% -0.1756 0.1205)
OKLCH	oklch(81.83% 0.213 145.5)
XYZ	xyz(34.0369, 59.2790, 21.9576)
Luminance	0.5928 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E665 #E651D2

analogous

#87E651 #51E665 #51E6AF

triadic

#51E665 #6551E6 #E66551

tetradic

#51E665 #5187E6 #E651D2 #E6AF51

square

#51E665 #5187E6 #E651D2 #E6AF51

split-complementary

#51E665 #AF51E6 #E65187

monochromatic

#18A52B #1FDA38 #51E665 #87EE94 #BCF5C4

Accessibility & contrast

On white

1.63

#51E665 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.86

#51E665 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E665

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E665	#FFFFFF	#000000	##000000
##51E665	1.00	1.63	12.86	12.86
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.86	21.00	1.00	1.00
##000000	12.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D258

Deuteranopia (green-blind)

#D7C56F

Tritanopia (blue-blind)

#26E1C9

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e665;
/* rgb */ color: rgb(81, 230, 101);
/* oklch */ color: oklch(81.8% 0.213 145.5);

Tailwind

colors: {
  custom: {
    50: '#92ef94',
    500: '#51e665',
    950: '#000000',
  },
}

SCSS

$custom: #51e665;
$custom-light: #92ef94;
$custom-dark: #000000;

JSON

{
  "hex": "#51e665",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 101
  },
  "hsl": {
    "h": 128.054,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81832,
    "c": 0.21298,
    "h": 145.5
  },
  "luminance": 0.59283
}

Semantic roles & 50–950 ramp

primary

#51E665

secondary

#A73498

accent

#0EBCD7

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E170D

muted

#7F857F

Preview Lab

Preview with #51E665

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

Preview Lab → · Contrast checker → · Palette generator →