#51E18F#51E18F

#51E18F is a light, vivid green. Relative luminance 0.576; OKLCH L 81.2% C 0.170 H 154.6°. Best body text is #000000 at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#51E18F
RGB	rgb(81, 225, 143)
HSL	hsl(146, 71%, 60%)
HSV	hsv(146, 64%, 88%)
CMYK	cmyk(64%, 0%, 36.4%, 11.8%)
CIE-LAB	lab(80.50, -56.65, 29.08)
CIE-LCH	lch(80.50, 63.68, 152.83°)
OKLab	oklab(81.25% -0.1534 0.0728)
OKLCH	oklch(81.25% 0.17 154.6)
XYZ	xyz(35.2734, 57.5792, 35.2363)
Luminance	0.5758 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E18F #E151A3

analogous

#5BE151 #51E18F #51E1D7

triadic

#51E18F #8F51E1 #E18F51

tetradic

#51E18F #515BE1 #E151A3 #E1D751

square

#51E18F #515BE1 #E151A3 #E1D751

split-complementary

#51E18F #D751E1 #E1515B

monochromatic

#1B9D53 #24D16E #51E18F #85EAB1 #B9F3D2

Accessibility & contrast

On white

1.68

#51E18F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.52

#51E18F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E18F

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E18F	#FFFFFF	#000000	##000000
##51E18F	1.00	1.68	12.52	12.52
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.52	21.00	1.00	1.00
##000000	12.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0D08A

Deuteranopia (green-blind)

#CEC294

Tritanopia (blue-blind)

#00DFCC

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e18f;
/* rgb */ color: rgb(81, 225, 143);
/* oklch */ color: oklch(81.2% 0.170 154.6);

Tailwind

colors: {
  custom: {
    50: '#90ebb0',
    500: '#51e18f',
    950: '#000000',
  },
}

SCSS

$custom: #51e18f;
$custom-light: #90ebb0;
$custom-dark: #000000;

JSON

{
  "hex": "#51e18f",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 143
  },
  "hsl": {
    "h": 145.833,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.81245,
    "c": 0.1698,
    "h": 154.6
  },
  "luminance": 0.57583
}

Semantic roles & 50–950 ramp

primary

#51E18F

secondary

#A03672

accent

#3AA0ED

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E18F

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

Preview Lab → · Contrast checker → · Palette generator →