#66D151#66D151

#66D151 is a light, vivid green. Relative luminance 0.490; OKLCH L 77.0% C 0.194 H 140.5°. Best body text is #000000 at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#66D151
RGB	rgb(102, 209, 81)
HSL	hsl(110, 58%, 57%)
HSV	hsv(110, 61%, 82%)
CMYK	cmyk(51.2%, 0%, 61.2%, 18%)
CIE-LAB	lab(75.46, -54.70, 52.87)
CIE-LCH	lch(75.46, 76.07, 135.97°)
OKLab	oklab(77.01% -0.1497 0.1234)
OKLCH	oklch(77.01% 0.194 140.5)
XYZ	xyz(29.7639, 49.0175, 15.6759)
Luminance	0.4902 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D151 #BC51D1

analogous

#A6D151 #66D151 #51D17C

triadic

#66D151 #5166D1 #D15166

tetradic

#66D151 #51A6D1 #BC51D1 #D17C51

square

#66D151 #51A6D1 #BC51D1 #D17C51

split-complementary

#66D151 #7C51D1 #D151A6

monochromatic

#338523 #46B530 #66D151 #91DE81 #BBEBB2

Accessibility & contrast

On white

1.94

#66D151 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.80

#66D151 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D151

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D151	#FFFFFF	#000000	##000000
##66D151	1.00	1.94	10.80	10.80
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.80	21.00	1.00	1.00
##000000	10.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C043

Deuteranopia (green-blind)

#C8B65B

Tritanopia (blue-blind)

#5ACBB6

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #66d151;
/* rgb */ color: rgb(102, 209, 81);
/* oklch */ color: oklch(77.0% 0.194 140.5);

Tailwind

colors: {
  custom: {
    50: '#9ae086',
    500: '#66d151',
    950: '#000000',
  },
}

SCSS

$custom: #66d151;
$custom-light: #9ae086;
$custom-dark: #000000;

JSON

{
  "hex": "#66d151",
  "rgb": {
    "r": 102,
    "g": 209,
    "b": 81
  },
  "hsl": {
    "h": 110.156,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.77012,
    "c": 0.19402,
    "h": 140.5
  },
  "luminance": 0.4902
}

Semantic roles & 50–950 ramp

primary

#66D151

secondary

#D0A5D9

accent

#46E1C8

background

#FAFDF8

surface

#F3FBF0

border

#CDD4CB

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66D151

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

Preview Lab → · Contrast checker → · Palette generator →