#51E37F#51E37F

#51E37F is a light, vivid green. Relative luminance 0.582; OKLCH L 81.5% C 0.187 H 150.3°. Best body text is #000000 at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#51E37F
RGB	rgb(81, 227, 127)
HSL	hsl(139, 72%, 60%)
HSV	hsv(139, 64%, 89%)
CMYK	cmyk(64.3%, 0%, 44.1%, 11%)
CIE-LAB	lab(80.86, -60.17, 37.61)
CIE-LCH	lch(80.86, 70.96, 147.99°)
OKLab	oklab(81.46% -0.1623 0.0925)
OKLCH	oklch(81.46% 0.187 150.3)
XYZ	xyz(34.6905, 58.2162, 29.4832)
Luminance	0.5822 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E37F #E351B5

analogous

#6CE351 #51E37F #51E3C8

triadic

#51E37F #7F51E3 #E37F51

tetradic

#51E37F #516CE3 #E351B5 #E3C851

square

#51E37F #516CE3 #E351B5 #E3C851

split-complementary

#51E37F #C851E3 #E3516C

monochromatic

#1AA044 #22D55A #51E37F #86EBA6 #BAF4CD

Accessibility & contrast

On white

1.66

#51E37F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.64

#51E37F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E37F

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E37F	#FFFFFF	#000000	##000000
##51E37F	1.00	1.66	12.64	12.64
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.64	21.00	1.00	1.00
##000000	12.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4D177

Deuteranopia (green-blind)

#D2C486

Tritanopia (blue-blind)

#13DFCB

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e37f;
/* rgb */ color: rgb(81, 227, 127);
/* oklch */ color: oklch(81.5% 0.187 150.3);

Tailwind

colors: {
  custom: {
    50: '#91eda5',
    500: '#51e37f',
    950: '#000000',
  },
}

SCSS

$custom: #51e37f;
$custom-light: #91eda5;
$custom-dark: #000000;

JSON

{
  "hex": "#51e37f",
  "rgb": {
    "r": 81,
    "g": 227,
    "b": 127
  },
  "hsl": {
    "h": 138.904,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.81455,
    "c": 0.18683,
    "h": 150.3
  },
  "luminance": 0.5822
}

Semantic roles & 50–950 ramp

primary

#51E37F

secondary

#A33580

accent

#1197D4

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E37F

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

Preview Lab → · Contrast checker → · Palette generator →