#51E579#51E579

#51E579 is a light, vivid green. Relative luminance 0.592; OKLCH L 81.9% C 0.195 H 148.9°. Best body text is #000000 at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#51E579
RGB	rgb(81, 229, 121)
HSL	hsl(136, 74%, 61%)
HSV	hsv(136, 65%, 90%)
CMYK	cmyk(64.6%, 0%, 47.2%, 10.2%)
CIE-LAB	lab(81.38, -61.84, 41.22)
CIE-LCH	lch(81.38, 74.32, 146.31°)
OKLab	oklab(81.86% -0.1668 0.1005)
OKLCH	oklch(81.86% 0.195 148.9)
XYZ	xyz(34.8612, 59.1648, 27.6682)
Luminance	0.5917 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E579 #E551BD

analogous

#73E551 #51E579 #51E5C3

triadic

#51E579 #7951E5 #E57951

tetradic

#51E579 #5173E5 #E551BD #E5C351

square

#51E579 #5173E5 #E551BD #E5C351

split-complementary

#51E579 #C351E5 #E55173

monochromatic

#18A33E #20D852 #51E579 #86EDA2 #BBF5CB

Accessibility & contrast

On white

1.64

#51E579 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.83

#51E579 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E579

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E579	#FFFFFF	#000000	##000000
##51E579	1.00	1.64	12.83	12.83
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.83	21.00	1.00	1.00
##000000	12.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7D270

Deuteranopia (green-blind)

#D4C581

Tritanopia (blue-blind)

#18E1CB

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e579;
/* rgb */ color: rgb(81, 229, 121);
/* oklch */ color: oklch(81.9% 0.195 148.9);

Tailwind

colors: {
  custom: {
    50: '#91eea1',
    500: '#51e579',
    950: '#000000',
  },
}

SCSS

$custom: #51e579;
$custom-light: #91eea1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e579",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 121
  },
  "hsl": {
    "h": 136.216,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81859,
    "c": 0.19475,
    "h": 148.9
  },
  "luminance": 0.59168
}

Semantic roles & 50–950 ramp

primary

#51E579

secondary

#A63587

accent

#0FA0D6

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E579

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

Preview Lab → · Contrast checker → · Palette generator →