#51E563#51E563

#51E563 is a light, highly saturated green. Relative luminance 0.587; OKLCH L 81.6% C 0.213 H 145.3°. Best body text is #000000 at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#51E563
RGB	rgb(81, 229, 99)
HSL	hsl(127, 74%, 61%)
HSV	hsv(127, 65%, 90%)
CMYK	cmyk(64.6%, 0%, 56.8%, 10.2%)
CIE-LAB	lab(81.12, -64.86, 51.24)
CIE-LCH	lch(81.12, 82.66, 141.69°)
OKLab	oklab(81.56% -0.1754 0.1215)
OKLCH	oklch(81.56% 0.213 145.3)
XYZ	xyz(33.6626, 58.6853, 21.3553)
Luminance	0.5869 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E563 #E551D3

analogous

#89E551 #51E563 #51E5AD

triadic

#51E563 #6351E5 #E56351

tetradic

#51E563 #5189E5 #E551D3 #E5AD51

square

#51E563 #5189E5 #E551D3 #E5AD51

split-complementary

#51E563 #AD51E5 #E55189

monochromatic

#18A329 #20D837 #51E563 #86ED93 #BBF5C2

Accessibility & contrast

On white

1.65

#51E563 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.74

#51E563 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E563

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E563	#FFFFFF	#000000	##000000
##51E563	1.00	1.65	12.74	12.74
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.74	21.00	1.00	1.00
##000000	12.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D156

Deuteranopia (green-blind)

#D7C56D

Tritanopia (blue-blind)

#28DFC8

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e563;
/* rgb */ color: rgb(81, 229, 99);
/* oklch */ color: oklch(81.6% 0.213 145.3);

Tailwind

colors: {
  custom: {
    50: '#92ee93',
    500: '#51e563',
    950: '#000000',
  },
}

SCSS

$custom: #51e563;
$custom-light: #92ee93;
$custom-dark: #000000;

JSON

{
  "hex": "#51e563",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 99
  },
  "hsl": {
    "h": 127.297,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81555,
    "c": 0.21337,
    "h": 145.3
  },
  "luminance": 0.58689
}

Semantic roles & 50–950 ramp

primary

#51E563

secondary

#A63598

accent

#0FBED6

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160D

muted

#7F857F

Preview Lab

Preview with #51E563

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

Preview Lab → · Contrast checker → · Palette generator →