#51E188#51E188

#51E188 is a light, vivid green. Relative luminance 0.574; OKLCH L 81.1% C 0.176 H 152.7°. Best body text is #000000 at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#51E188
RGB	rgb(81, 225, 136)
HSL	hsl(143, 71%, 60%)
HSV	hsv(143, 64%, 88%)
CMYK	cmyk(64%, 0%, 39.6%, 11.8%)
CIE-LAB	lab(80.39, -57.91, 32.49)
CIE-LCH	lch(80.39, 66.40, 150.71°)
OKLab	oklab(81.11% -0.1565 0.0808)
OKLCH	oklch(81.11% 0.176 152.7)
XYZ	xyz(34.7596, 57.3737, 32.5302)
Luminance	0.5738 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E188 #E151AA

analogous

#62E151 #51E188 #51E1D0

triadic

#51E188 #8851E1 #E18851

tetradic

#51E188 #5162E1 #E151AA #E1D051

square

#51E188 #5162E1 #E151AA #E1D051

split-complementary

#51E188 #D051E1 #E15162

monochromatic

#1B9D4D #24D166 #51E188 #85EAAC #B9F3CF

Accessibility & contrast

On white

1.68

#51E188 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.48

#51E188 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E188

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E188	#FFFFFF	#000000	##000000
##51E188	1.00	1.68	12.48	12.48
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.48	21.00	1.00	1.00
##000000	12.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1CF82

Deuteranopia (green-blind)

#CFC28E

Tritanopia (blue-blind)

#05DECB

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e188;
/* rgb */ color: rgb(81, 225, 136);
/* oklch */ color: oklch(81.1% 0.176 152.7);

Tailwind

colors: {
  custom: {
    50: '#91ebab',
    500: '#51e188',
    950: '#000000',
  },
}

SCSS

$custom: #51e188;
$custom-light: #91ebab;
$custom-dark: #000000;

JSON

{
  "hex": "#51e188",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 136
  },
  "hsl": {
    "h": 142.917,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.81113,
    "c": 0.17611,
    "h": 152.7
  },
  "luminance": 0.57377
}

Semantic roles & 50–950 ramp

primary

#51E188

secondary

#A03678

accent

#3AA9ED

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E188

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

Preview Lab → · Contrast checker → · Palette generator →