#51E290#51E290

#51E290 is a light, vivid green. Relative luminance 0.582; OKLCH L 81.5% C 0.170 H 154.7°. Best body text is #000000 at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#51E290
RGB	rgb(81, 226, 144)
HSL	hsl(146, 71%, 60%)
HSV	hsv(146, 64%, 89%)
CMYK	cmyk(64.2%, 0%, 36.3%, 11.4%)
CIE-LAB	lab(80.82, -56.85, 28.99)
CIE-LCH	lch(80.82, 63.82, 152.98°)
OKLab	oklab(81.51% -0.1539 0.0726)
OKLCH	oklch(81.51% 0.17 154.7)
XYZ	xyz(35.6206, 58.1519, 35.7274)
Luminance	0.5816 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E290 #E251A3

analogous

#5AE251 #51E290 #51E2D9

triadic

#51E290 #9051E2 #E29051

tetradic

#51E290 #515AE2 #E251A3 #E2D951

square

#51E290 #515AE2 #E251A3 #E2D951

split-complementary

#51E290 #D951E2 #E2515A

monochromatic

#1A9E54 #23D36F #51E290 #85EBB1 #BAF3D3

Accessibility & contrast

On white

1.66

#51E290 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.63

#51E290 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E290

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E290	#FFFFFF	#000000	##000000
##51E290	1.00	1.66	12.63	12.63
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.63	21.00	1.00	1.00
##000000	12.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1D18B

Deuteranopia (green-blind)

#CFC395

Tritanopia (blue-blind)

#00E0CD

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e290;
/* rgb */ color: rgb(81, 226, 144);
/* oklch */ color: oklch(81.5% 0.170 154.7);

Tailwind

colors: {
  custom: {
    50: '#91ecb1',
    500: '#51e290',
    950: '#000000',
  },
}

SCSS

$custom: #51e290;
$custom-light: #91ecb1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e290",
  "rgb": {
    "r": 81,
    "g": 226,
    "b": 144
  },
  "hsl": {
    "h": 146.069,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.81513,
    "c": 0.17022,
    "h": 154.7
  },
  "luminance": 0.58156
}

Semantic roles & 50–950 ramp

primary

#51E290

secondary

#A13673

accent

#127FD3

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E290

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

Preview Lab → · Contrast checker → · Palette generator →