#51F290#51F290

#51F290 is a very light, vivid green. Relative luminance 0.673; OKLCH L 85.5% C 0.191 H 152.6°. Best body text is #000000 at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#51F290
RGB	rgb(81, 242, 144)
HSL	hsl(143, 86%, 63%)
HSV	hsv(143, 67%, 95%)
CMYK	cmyk(66.5%, 0%, 40.5%, 5.1%)
CIE-LAB	lab(85.64, -62.85, 35.36)
CIE-LCH	lch(85.64, 72.11, 150.63°)
OKLab	oklab(85.47% -0.1696 0.0877)
OKLCH	oklch(85.47% 0.191 152.6)
XYZ	xyz(40.1761, 67.2629, 37.2459)
Luminance	0.6727 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51F290 #F251B3

analogous

#62F251 #51F290 #51F2E0

triadic

#51F290 #9051F2 #F29051

tetradic

#51F290 #5162F2 #F251B3 #F2E051

square

#51F290 #5162F2 #F251B3 #F2E051

split-complementary

#51F290 #E051F2 #F25162

monochromatic

#0EBB52 #18EE6C #51F290 #8AF6B4 #C3FBD9

Accessibility & contrast

On white

1.45

#51F290 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.45

#51F290 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51F290

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51F290	#FFFFFF	#000000	##000000
##51F290	1.00	1.45	14.45	14.45
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.45	21.00	1.00	1.00
##000000	14.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2DF89

Deuteranopia (green-blind)

#DED097

Tritanopia (blue-blind)

#00EFDA

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #51f290;
/* rgb */ color: rgb(81, 242, 144);
/* oklch */ color: oklch(85.5% 0.191 152.6);

Tailwind

colors: {
  custom: {
    50: '#93f7b1',
    500: '#51f290',
    950: '#000000',
  },
}

SCSS

$custom: #51f290;
$custom-light: #93f7b1;
$custom-dark: #000000;

JSON

{
  "hex": "#51f290",
  "rgb": {
    "r": 81,
    "g": 242,
    "b": 144
  },
  "hsl": {
    "h": 143.478,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.85474,
    "c": 0.19095,
    "h": 152.6
  },
  "luminance": 0.67267
}

Semantic roles & 50–950 ramp

primary

#51F290

secondary

#B92E83

accent

#038BE3

background

#FCFFFD

surface

#F5FFF7

border

#CFD7D0

text

#0F1711

muted

#808581

Preview Lab

Preview with #51F290

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

Preview Lab → · Contrast checker → · Palette generator →