#51E180#51E180

#51E180 is a light, vivid green. Relative luminance 0.572; OKLCH L 81.0% C 0.183 H 150.7°. Best body text is #000000 at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#51E180
RGB	rgb(81, 225, 128)
HSL	hsl(140, 71%, 60%)
HSV	hsv(140, 64%, 88%)
CMYK	cmyk(64%, 0%, 43.1%, 11.8%)
CIE-LAB	lab(80.27, -59.27, 36.35)
CIE-LCH	lch(80.27, 69.53, 148.48°)
OKLab	oklab(80.97% -0.1599 0.0896)
OKLCH	oklch(80.97% 0.183 150.7)
XYZ	xyz(34.2121, 57.1547, 29.6469)
Luminance	0.5716 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E180 #E151B2

analogous

#6AE151 #51E180 #51E1C8

triadic

#51E180 #8051E1 #E18051

tetradic

#51E180 #516AE1 #E151B2 #E1C851

square

#51E180 #516AE1 #E151B2 #E1C851

split-complementary

#51E180 #C851E1 #E1516A

monochromatic

#1B9D45 #24D15C #51E180 #85EAA6 #B9F3CC

Accessibility & contrast

On white

1.69

#51E180 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.43

#51E180 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E180

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E180	#FFFFFF	#000000	##000000
##51E180	1.00	1.69	12.43	12.43
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.43	21.00	1.00	1.00
##000000	12.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2CF79

Deuteranopia (green-blind)

#D0C287

Tritanopia (blue-blind)

#14DDC9

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e180;
/* rgb */ color: rgb(81, 225, 128);
/* oklch */ color: oklch(81.0% 0.183 150.7);

Tailwind

colors: {
  custom: {
    50: '#91eba6',
    500: '#51e180',
    950: '#000000',
  },
}

SCSS

$custom: #51e180;
$custom-light: #91eba6;
$custom-dark: #000000;

JSON

{
  "hex": "#51e180",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 128
  },
  "hsl": {
    "h": 139.583,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.80972,
    "c": 0.18334,
    "h": 150.7
  },
  "luminance": 0.57158
}

Semantic roles & 50–950 ramp

primary

#51E180

secondary

#A0367D

accent

#3AB3ED

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E180

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

Preview Lab → · Contrast checker → · Palette generator →