#51D571#51D571

#51D571 is a light, vivid green. Relative luminance 0.505; OKLCH L 77.7% C 0.181 H 148.5°. Best body text is #000000 at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#51D571
RGB	rgb(81, 213, 113)
HSL	hsl(135, 61%, 58%)
HSV	hsv(135, 62%, 84%)
CMYK	cmyk(62%, 0%, 46.9%, 16.5%)
CIE-LAB	lab(76.39, -57.18, 38.85)
CIE-LCH	lch(76.39, 69.13, 145.81°)
OKLab	oklab(77.71% -0.1544 0.0948)
OKLCH	oklch(77.71% 0.181 148.5)
XYZ	xyz(30.1661, 50.5271, 23.7825)
Luminance	0.5053 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D571 #D551B5

analogous

#73D551 #51D571 #51D5B3

triadic

#51D571 #7151D5 #D57151

tetradic

#51D571 #5173D5 #D551B5 #D5B351

square

#51D571 #5173D5 #D551B5 #D5B351

split-complementary

#51D571 #B351D5 #D55173

monochromatic

#218A3B #2DBC50 #51D571 #82E199 #B4EDC1

Accessibility & contrast

On white

1.89

#51D571 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.11

#51D571 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D571

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D571	#FFFFFF	#000000	##000000
##51D571	1.00	1.89	11.11	11.11
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.11	21.00	1.00	1.00
##000000	11.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7C469

Deuteranopia (green-blind)

#C6B878

Tritanopia (blue-blind)

#2AD1BD

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #51d571;
/* rgb */ color: rgb(81, 213, 113);
/* oklch */ color: oklch(77.7% 0.181 148.5);

Tailwind

colors: {
  custom: {
    50: '#8fe39b',
    500: '#51d571',
    950: '#000000',
  },
}

SCSS

$custom: #51d571;
$custom-light: #8fe39b;
$custom-dark: #000000;

JSON

{
  "hex": "#51d571",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 113
  },
  "hsl": {
    "h": 134.545,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.77711,
    "c": 0.18118,
    "h": 148.5
  },
  "luminance": 0.5053
}

Semantic roles & 50–950 ramp

primary

#51D571

secondary

#903A7B

accent

#44BDE4

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E150E

muted

#7F847F

Preview Lab

Preview with #51D571

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

Preview Lab → · Contrast checker → · Palette generator →