#51E456#51E456

#51E456 is a light, highly saturated green. Relative luminance 0.579; OKLCH L 81.2% C 0.222 H 143.7°. Best body text is #000000 at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#51E456
RGB	rgb(81, 228, 86)
HSL	hsl(122, 73%, 61%)
HSV	hsv(122, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 62.3%, 10.6%)
CIE-LAB	lab(80.69, -65.99, 56.43)
CIE-LCH	lch(80.69, 86.82, 139.46°)
OKLab	oklab(81.16% -0.179 0.1316)
OKLCH	oklch(81.16% 0.222 143.7)
XYZ	xyz(32.8145, 57.9047, 18.2497)
Luminance	0.5791 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E456 #E451DF

analogous

#95E451 #51E456 #51E49F

triadic

#51E456 #5651E4 #E45651

tetradic

#51E456 #5195E4 #E451DF #E49F51

square

#51E456 #5195E4 #E451DF #E49F51

split-complementary

#51E456 #9F51E4 #E45195

monochromatic

#19A21E #21D727 #51E456 #86EC89 #BBF4BD

Accessibility & contrast

On white

1.67

#51E456 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.58

#51E456 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E456

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E456	#FFFFFF	#000000	##000000
##51E456	1.00	1.67	12.58	12.58
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.58	21.00	1.00	1.00
##000000	12.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8D045

Deuteranopia (green-blind)

#D7C462

Tritanopia (blue-blind)

#2EDEC6

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e456;
/* rgb */ color: rgb(81, 228, 86);
/* oklch */ color: oklch(81.2% 0.222 143.7);

Tailwind

colors: {
  custom: {
    50: '#93ee8b',
    500: '#51e456',
    950: '#000000',
  },
}

SCSS

$custom: #51e456;
$custom-light: #93ee8b;
$custom-dark: #000000;

JSON

{
  "hex": "#51e456",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 86
  },
  "hsl": {
    "h": 122.041,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.81157,
    "c": 0.22213,
    "h": 143.7
  },
  "luminance": 0.57908
}

Semantic roles & 50–950 ramp

primary

#51E456

secondary

#A435A0

accent

#10CFD5

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160C

muted

#7F857F

Preview Lab

Preview with #51E456

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

Preview Lab → · Contrast checker → · Palette generator →