#51E68E#51E68E

#51E68E is a very light, vivid green. Relative luminance 0.603; OKLCH L 82.5% C 0.177 H 153.6°. Best body text is #000000 at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#51E68E
RGB	rgb(81, 230, 142)
HSL	hsl(145, 75%, 61%)
HSV	hsv(145, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 38.3%, 9.8%)
CIE-LAB	lab(82.00, -58.74, 31.57)
CIE-LCH	lch(82.00, 66.69, 151.74°)
OKLab	oklab(82.47% -0.1588 0.0788)
OKLCH	oklch(82.47% 0.177 153.6)
XYZ	xyz(36.5695, 60.2921, 35.2962)
Luminance	0.6030 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E68E #E651A9

analogous

#5EE651 #51E68E #51E6D8

triadic

#51E68E #8E51E6 #E68E51

tetradic

#51E68E #515EE6 #E651A9 #E6D851

square

#51E68E #515EE6 #E651A9 #E6D851

split-complementary

#51E68E #D851E6 #E6515E

monochromatic

#18A552 #1FDA6C #51E68E #87EEB1 #BCF5D4

Accessibility & contrast

On white

1.61

#51E68E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.06

#51E68E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E68E

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E68E	#FFFFFF	#000000	##000000
##51E68E	1.00	1.61	13.06	13.06
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.06	21.00	1.00	1.00
##000000	13.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6D488

Deuteranopia (green-blind)

#D3C794

Tritanopia (blue-blind)

#00E3D0

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #51e68e;
/* rgb */ color: rgb(81, 230, 142);
/* oklch */ color: oklch(82.5% 0.177 153.6);

Tailwind

colors: {
  custom: {
    50: '#91efb0',
    500: '#51e68e',
    950: '#000000',
  },
}

SCSS

$custom: #51e68e;
$custom-light: #91efb0;
$custom-dark: #000000;

JSON

{
  "hex": "#51e68e",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 142
  },
  "hsl": {
    "h": 144.564,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.82467,
    "c": 0.17725,
    "h": 153.6
  },
  "luminance": 0.60296
}

Semantic roles & 50–950 ramp

primary

#51E68E

secondary

#A73478

accent

#0E85D7

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1710

muted

#7F8581

Preview Lab

Preview with #51E68E

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

Preview Lab → · Contrast checker → · Palette generator →