#66BD2C#66BD2C

#66BD2C is a light, vivid yellow-green. Relative luminance 0.394; OKLCH L 71.6% C 0.194 H 136.0°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#66BD2C
RGB	rgb(102, 189, 44)
HSL	hsl(96, 62%, 46%)
HSV	hsv(96, 77%, 74%)
CMYK	cmyk(46%, 0%, 76.7%, 25.9%)
CIE-LAB	lab(69.04, -49.95, 60.43)
CIE-LCH	lch(69.04, 78.40, 129.58°)
OKLab	oklab(71.65% -0.1393 0.1347)
OKLCH	oklch(71.65% 0.194 136)
XYZ	xyz(24.1311, 39.4003, 8.7159)
Luminance	0.3940 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD2C #832CBD

analogous

#AEBD2C #66BD2C #2CBD3A

triadic

#66BD2C #2C66BD #BD2C66

tetradic

#66BD2C #2CAEBD #832CBD #BD3A2C

square

#66BD2C #2CAEBD #832CBD #BD3A2C

split-complementary

#66BD2C #3A2CBD #BD2CAE

monochromatic

#305A15 #4B8B20 #66BD2C #86D650 #A8E282

Accessibility & contrast

On white

2.36

#66BD2C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#66BD2C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD2C

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD2C	#FFFFFF	#000000	##000000
##66BD2C	1.00	2.36	8.88	8.88
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD05

Deuteranopia (green-blind)

#B8A63C

Tritanopia (blue-blind)

#62B6A2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bd2c;
/* rgb */ color: rgb(102, 189, 44);
/* oklch */ color: oklch(71.6% 0.194 136.0);

Tailwind

colors: {
  custom: {
    50: '#99d170',
    500: '#66bd2c',
    950: '#000000',
  },
}

SCSS

$custom: #66bd2c;
$custom-light: #99d170;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd2c",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 44
  },
  "hsl": {
    "h": 96,
    "s": 62.232,
    "l": 45.686
  },
  "oklch": {
    "l": 0.71647,
    "c": 0.19372,
    "h": 136
  },
  "luminance": 0.39402
}

Semantic roles & 50–950 ramp

primary

#66BD2C

secondary

#AA7ACB

accent

#42E5A4

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BD2C

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

Preview Lab → · Contrast checker → · Palette generator →