#51E458#51E458

#51E458 is a light, highly saturated green. Relative luminance 0.579; OKLCH L 81.2% C 0.221 H 143.9°. Best body text is #000000 at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#51E458
RGB	rgb(81, 228, 88)
HSL	hsl(123, 73%, 61%)
HSV	hsv(123, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 61.4%, 10.6%)
CIE-LAB	lab(80.70, -65.77, 55.60)
CIE-LCH	lch(80.70, 86.13, 139.79°)
OKLab	oklab(81.18% -0.1783 0.13)
OKLCH	oklch(81.18% 0.221 143.9)
XYZ	xyz(32.8962, 57.9374, 18.6800)
Luminance	0.5794 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E458 #E451DD

analogous

#93E451 #51E458 #51E4A1

triadic

#51E458 #5851E4 #E45851

tetradic

#51E458 #5193E4 #E451DD #E4A151

square

#51E458 #5193E4 #E451DD #E4A151

split-complementary

#51E458 #A151E4 #E45193

monochromatic

#19A220 #21D72A #51E458 #86EC8B #BBF4BE

Accessibility & contrast

On white

1.67

#51E458 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.59

#51E458 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E458

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E458	#FFFFFF	#000000	##000000
##51E458	1.00	1.67	12.59	12.59
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.59	21.00	1.00	1.00
##000000	12.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8D048

Deuteranopia (green-blind)

#D6C464

Tritanopia (blue-blind)

#2DDEC6

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e458;
/* rgb */ color: rgb(81, 228, 88);
/* oklch */ color: oklch(81.2% 0.221 143.9);

Tailwind

colors: {
  custom: {
    50: '#92ee8c',
    500: '#51e458',
    950: '#000000',
  },
}

SCSS

$custom: #51e458;
$custom-light: #92ee8c;
$custom-dark: #000000;

JSON

{
  "hex": "#51e458",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 88
  },
  "hsl": {
    "h": 122.857,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.81178,
    "c": 0.22066,
    "h": 143.9
  },
  "luminance": 0.57941
}

Semantic roles & 50–950 ramp

primary

#51E458

secondary

#A4359F

accent

#10CCD5

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160C

muted

#7F857F

Preview Lab

Preview with #51E458

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

Preview Lab → · Contrast checker → · Palette generator →