#66BD3F#66BD3F

#66BD3F is a light, vivid green. Relative luminance 0.396; OKLCH L 71.8% C 0.182 H 137.5°. Best body text is #000000 at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#66BD3F
RGB	rgb(102, 189, 63)
HSL	hsl(101, 50%, 49%)
HSV	hsv(101, 67%, 74%)
CMYK	cmyk(46%, 0%, 66.7%, 25.9%)
CIE-LAB	lab(69.17, -48.57, 53.56)
CIE-LCH	lch(69.17, 72.31, 132.20°)
OKLab	oklab(71.79% -0.1343 0.1229)
OKLCH	oklch(71.79% 0.182 137.5)
XYZ	xyz(24.5735, 39.5773, 11.0460)
Luminance	0.3958 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD3F #963FBD

analogous

#A5BD3F #66BD3F #3FBD57

triadic

#66BD3F #3F66BD #BD3F66

tetradic

#66BD3F #3FA5BD #963FBD #BD573F

square

#66BD3F #3FA5BD #963FBD #BD573F

split-complementary

#66BD3F #573FBD #BD3FA5

monochromatic

#346120 #4D8F30 #66BD3F #8ACE6B #AEDD99

Accessibility & contrast

On white

2.36

#66BD3F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.92

#66BD3F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD3F

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD3F	#FFFFFF	#000000	##000000
##66BD3F	1.00	2.36	8.92	8.92
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.92	21.00	1.00	1.00
##000000	8.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD2E

Deuteranopia (green-blind)

#B7A64A

Tritanopia (blue-blind)

#61B6A3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66bd3f;
/* rgb */ color: rgb(102, 189, 63);
/* oklch */ color: oklch(71.8% 0.182 137.5);

Tailwind

colors: {
  custom: {
    50: '#98d17a',
    500: '#66bd3f',
    950: '#000000',
  },
}

SCSS

$custom: #66bd3f;
$custom-light: #98d17a;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd3f",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 63
  },
  "hsl": {
    "h": 101.429,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.71792,
    "c": 0.182,
    "h": 137.5
  },
  "luminance": 0.39579
}

Semantic roles & 50–950 ramp

primary

#66BD3F

secondary

#B78FC9

accent

#4EDAAE

background

#F9FCF7

surface

#F2F9EE

border

#CCD2C9

text

#0E140A

muted

#7E827C

Preview Lab

Preview with #66BD3F

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

Preview Lab → · Contrast checker → · Palette generator →