#51D678#51D678

#51D678 is a light, vivid green. Relative luminance 0.512; OKLCH L 78.1% C 0.176 H 149.9°. Best body text is #000000 at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#51D678
RGB	rgb(81, 214, 120)
HSL	hsl(138, 62%, 58%)
HSV	hsv(138, 62%, 84%)
CMYK	cmyk(62.1%, 0%, 43.9%, 16.1%)
CIE-LAB	lab(76.80, -56.45, 35.88)
CIE-LCH	lch(76.80, 66.89, 147.56°)
OKLab	oklab(78.08% -0.1524 0.0883)
OKLCH	oklch(78.08% 0.176 149.9)
XYZ	xyz(30.8278, 51.1954, 26.0228)
Luminance	0.5120 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D678 #D651AF

analogous

#6CD651 #51D678 #51D6BA

triadic

#51D678 #7851D6 #D67851

tetradic

#51D678 #516CD6 #D651AF #D6BA51

square

#51D678 #516CD6 #D651AF #D6BA51

split-complementary

#51D678 #BA51D6 #D6516C

monochromatic

#218C40 #2DBD57 #51D678 #83E29E #B4EDC5

Accessibility & contrast

On white

1.87

#51D678 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.24

#51D678 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D678

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D678	#FFFFFF	#000000	##000000
##51D678	1.00	1.87	11.24	11.24
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.24	21.00	1.00	1.00
##000000	11.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7C571

Deuteranopia (green-blind)

#C6B97E

Tritanopia (blue-blind)

#25D2BF

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51d678;
/* rgb */ color: rgb(81, 214, 120);
/* oklch */ color: oklch(78.1% 0.176 149.9);

Tailwind

colors: {
  custom: {
    50: '#8fe4a0',
    500: '#51d678',
    950: '#000000',
  },
}

SCSS

$custom: #51d678;
$custom-light: #8fe4a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51d678",
  "rgb": {
    "r": 81,
    "g": 214,
    "b": 120
  },
  "hsl": {
    "h": 137.594,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.78077,
    "c": 0.17615,
    "h": 149.9
  },
  "luminance": 0.51199
}

Semantic roles & 50–950 ramp

primary

#51D678

secondary

#923A78

accent

#43B5E5

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51D678

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

Preview Lab → · Contrast checker → · Palette generator →