#66BD20#66BD20

#66BD20 is a light, vivid yellow-green. Relative luminance 0.393; OKLCH L 71.6% C 0.199 H 135.3°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#66BD20
RGB	rgb(102, 189, 32)
HSL	hsl(93, 71%, 43%)
HSV	hsv(93, 83%, 74%)
CMYK	cmyk(46%, 0%, 83.1%, 25.9%)
CIE-LAB	lab(68.98, -50.56, 63.84)
CIE-LCH	lch(68.98, 81.43, 128.38°)
OKLab	oklab(71.58% -0.1416 0.1401)
OKLCH	oklch(71.58% 0.199 135.3)
XYZ	xyz(23.9372, 39.3228, 7.6949)
Luminance	0.3932 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD20 #7720BD

analogous

#B4BD20 #66BD20 #20BD28

triadic

#66BD20 #2066BD #BD2066

tetradic

#66BD20 #20B4BD #7720BD #BD2820

square

#66BD20 #20B4BD #7720BD #BD2820

split-complementary

#66BD20 #2820BD #BD20B4

monochromatic

#2E540E #4A8917 #66BD20 #84DE3C #A5E771

Accessibility & contrast

On white

2.37

#66BD20 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#66BD20 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD20

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD20	#FFFFFF	#000000	##000000
##66BD20	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD00

Deuteranopia (green-blind)

#B9A634

Tritanopia (blue-blind)

#63B6A1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bd20;
/* rgb */ color: rgb(102, 189, 32);
/* oklch */ color: oklch(71.6% 0.199 135.3);

Tailwind

colors: {
  custom: {
    50: '#9ad16b',
    500: '#66bd20',
    950: '#000000',
  },
}

SCSS

$custom: #66bd20;
$custom-light: #9ad16b;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd20",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 32
  },
  "hsl": {
    "h": 93.248,
    "s": 71.041,
    "l": 43.333
  },
  "oklch": {
    "l": 0.71583,
    "c": 0.19915,
    "h": 135.3
  },
  "luminance": 0.39324
}

Semantic roles & 50–950 ramp

primary

#66BD20

secondary

#A26BCD

accent

#3AEE9E

background

#FAFCF6

surface

#F3F9EC

border

#CDD2C7

text

#0F1408

muted

#7F827A

Preview Lab

Preview with #66BD20

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

Preview Lab → · Contrast checker → · Palette generator →