#51E77B#51E77B

#51E77B is a very light, vivid green. Relative luminance 0.603; OKLCH L 82.4% C 0.196 H 149.2°. Best body text is #000000 at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#51E77B
RGB	rgb(81, 231, 123)
HSL	hsl(137, 76%, 61%)
HSV	hsv(137, 65%, 91%)
CMYK	cmyk(64.9%, 0%, 46.8%, 9.4%)
CIE-LAB	lab(82.02, -62.26, 41.05)
CIE-LCH	lch(82.02, 74.57, 146.60°)
OKLab	oklab(82.39% -0.1679 0.1002)
OKLCH	oklch(82.39% 0.196 149.2)
XYZ	xyz(35.5417, 60.3275, 28.5064)
Luminance	0.6033 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E77B #E751BD

analogous

#72E751 #51E77B #51E7C6

triadic

#51E77B #7B51E7 #E77B51

tetradic

#51E77B #5172E7 #E751BD #E7C651

square

#51E77B #5172E7 #E751BD #E7C651

split-complementary

#51E77B #C651E7 #E75172

monochromatic

#17A73F #1EDC54 #51E77B #87EEA4 #BDF6CD

Accessibility & contrast

On white

1.61

#51E77B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.07

#51E77B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E77B

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E77B	#FFFFFF	#000000	##000000
##51E77B	1.00	1.61	13.07	13.07
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.07	21.00	1.00	1.00
##000000	13.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D472

Deuteranopia (green-blind)

#D6C783

Tritanopia (blue-blind)

#13E3CD

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #51e77b;
/* rgb */ color: rgb(81, 231, 123);
/* oklch */ color: oklch(82.4% 0.196 149.2);

Tailwind

colors: {
  custom: {
    50: '#92f0a3',
    500: '#51e77b',
    950: '#000000',
  },
}

SCSS

$custom: #51e77b;
$custom-light: #92f0a3;
$custom-dark: #000000;

JSON

{
  "hex": "#51e77b",
  "rgb": {
    "r": 81,
    "g": 231,
    "b": 123
  },
  "hsl": {
    "h": 136.8,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.8239,
    "c": 0.19553,
    "h": 149.2
  },
  "luminance": 0.60331
}

Semantic roles & 50–950 ramp

primary

#51E77B

secondary

#A83488

accent

#0E9FD8

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E170F

muted

#7F8580

Preview Lab

Preview with #51E77B

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

Preview Lab → · Contrast checker → · Palette generator →