#51DC66#51DC66

#51DC66 is a light, vivid green. Relative luminance 0.539; OKLCH L 79.3% C 0.200 H 146.0°. Best body text is #000000 at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#51DC66
RGB	rgb(81, 220, 102)
HSL	hsl(129, 67%, 59%)
HSV	hsv(129, 63%, 86%)
CMYK	cmyk(63.2%, 0%, 53.6%, 13.7%)
CIE-LAB	lab(78.40, -61.31, 46.63)
CIE-LCH	lch(78.40, 77.02, 142.75°)
OKLab	oklab(79.32% -0.1657 0.1116)
OKLCH	oklch(79.32% 0.2 146)
XYZ	xyz(31.3827, 53.8919, 21.3161)
Luminance	0.5390 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DC66 #DC51C7

analogous

#82DC51 #51DC66 #51DCAC

triadic

#51DC66 #6651DC #DC6651

tetradic

#51DC66 #5182DC #DC51C7 #DCAC51

square

#51DC66 #5182DC #DC51C7 #DCAC51

split-complementary

#51DC66 #AC51DC #DC5182

monochromatic

#1E9530 #28C840 #51DC66 #84E693 #B7F0C0

Accessibility & contrast

On white

1.78

#51DC66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.78

#51DC66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DC66

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DC66	#FFFFFF	#000000	##000000
##51DC66	1.00	1.78	11.78	11.78
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.78	21.00	1.00	1.00
##000000	11.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC95B

Deuteranopia (green-blind)

#CEBD6F

Tritanopia (blue-blind)

#2BD7C1

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51dc66;
/* rgb */ color: rgb(81, 220, 102);
/* oklch */ color: oklch(79.3% 0.200 146.0);

Tailwind

colors: {
  custom: {
    50: '#90e894',
    500: '#51dc66',
    950: '#000000',
  },
}

SCSS

$custom: #51dc66;
$custom-light: #90e894;
$custom-dark: #000000;

JSON

{
  "hex": "#51dc66",
  "rgb": {
    "r": 81,
    "g": 220,
    "b": 102
  },
  "hsl": {
    "h": 129.065,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.7932,
    "c": 0.19979,
    "h": 146
  },
  "luminance": 0.53895
}

Semantic roles & 50–950 ramp

primary

#51DC66

secondary

#99388B

accent

#3ED0E9

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160D

muted

#7F847F

Preview Lab

Preview with #51DC66

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

Preview Lab → · Contrast checker → · Palette generator →