#51F378#51F378

#51F378 is a very light, highly saturated green. Relative luminance 0.672; OKLCH L 85.3% C 0.213 H 147.9°. Best body text is #000000 at 14.44:1 contrast (WCAG AA passes).

Color values

HEX	#51F378
RGB	rgb(81, 243, 120)
HSL	hsl(134, 87%, 64%)
HSV	hsv(134, 67%, 95%)
CMYK	cmyk(66.7%, 0%, 50.6%, 4.7%)
CIE-LAB	lab(85.61, -66.95, 46.96)
CIE-LCH	lch(85.61, 81.78, 144.95°)
OKLab	oklab(85.34% -0.1805 0.1134)
OKLCH	oklch(85.34% 0.213 147.9)
XYZ	xyz(38.8312, 67.2024, 28.6906)
Luminance	0.6721 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51F378 #F351CC

analogous

#7BF351 #51F378 #51F3C9

triadic

#51F378 #7851F3 #F37851

tetradic

#51F378 #517BF3 #F351CC #F3C951

square

#51F378 #517BF3 #F351CC #F3C951

split-complementary

#51F378 #C951F3 #F3517B

monochromatic

#0DBD37 #18EF4C #51F378 #8AF7A4 #C4FBD1

Accessibility & contrast

On white

1.45

#51F378 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.44

#51F378 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51F378

14.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51F378	#FFFFFF	#000000	##000000
##51F378	1.00	1.45	14.44	14.44
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.44	21.00	1.00	1.00
##000000	14.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F6DE6D

Deuteranopia (green-blind)

#E2D181

Tritanopia (blue-blind)

#03EED7

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #51f378;
/* rgb */ color: rgb(81, 243, 120);
/* oklch */ color: oklch(85.3% 0.213 147.9);

Tailwind

colors: {
  custom: {
    50: '#94f8a1',
    500: '#51f378',
    950: '#000000',
  },
}

SCSS

$custom: #51f378;
$custom-light: #94f8a1;
$custom-dark: #000000;

JSON

{
  "hex": "#51f378",
  "rgb": {
    "r": 81,
    "g": 243,
    "b": 120
  },
  "hsl": {
    "h": 134.444,
    "s": 87.097,
    "l": 63.529
  },
  "oklch": {
    "l": 0.8534,
    "c": 0.21315,
    "h": 147.9
  },
  "luminance": 0.67207
}

Semantic roles & 50–950 ramp

primary

#51F378

secondary

#BB2D99

accent

#02ADE4

background

#FCFFFC

surface

#F5FFF5

border

#CFD7CF

text

#0F170F

muted

#808580

Preview Lab

Preview with #51F378

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

Preview Lab → · Contrast checker → · Palette generator →