#66D63B#66D63B

#66D63B is a light, highly saturated green. Relative luminance 0.512; OKLCH L 78.1% C 0.215 H 138.6°. Best body text is #000000 at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#66D63B
RGB	rgb(102, 214, 59)
HSL	hsl(103, 65%, 54%)
HSV	hsv(103, 72%, 84%)
CMYK	cmyk(52.3%, 0%, 72.4%, 16.1%)
CIE-LAB	lab(76.82, -58.46, 63.02)
CIE-LCH	lch(76.82, 85.96, 132.85°)
OKLab	oklab(78.07% -0.1613 0.1422)
OKLCH	oklch(78.07% 0.215 138.6)
XYZ	xyz(30.3143, 51.2313, 12.4280)
Luminance	0.5123 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D63B #AB3BD6

analogous

#B3D63B #66D63B #3BD65D

triadic

#66D63B #3B66D6 #D63B66

tetradic

#66D63B #3BB3D6 #AB3BD6 #D65D3B

square

#66D63B #3BB3D6 #AB3BD6 #D65D3B

split-complementary

#66D63B #5D3BD6 #D63BB3

monochromatic

#357D1A #4BAF25 #66D63B #8EE16E #B5EBA0

Accessibility & contrast

On white

1.87

#66D63B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.25

#66D63B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D63B

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D63B	#FFFFFF	#000000	##000000
##66D63B	1.00	1.87	11.25	11.25
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.25	21.00	1.00	1.00
##000000	11.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC31E

Deuteranopia (green-blind)

#CEBA4B

Tritanopia (blue-blind)

#5CCFB8

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d63b;
/* rgb */ color: rgb(102, 214, 59);
/* oklch */ color: oklch(78.1% 0.215 138.6);

Tailwind

colors: {
  custom: {
    50: '#9ce37a',
    500: '#66d63b',
    950: '#000000',
  },
}

SCSS

$custom: #66d63b;
$custom-light: #9ce37a;
$custom-dark: #000000;

JSON

{
  "hex": "#66d63b",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 59
  },
  "hsl": {
    "h": 103.355,
    "s": 65.401,
    "l": 53.529
  },
  "oklch": {
    "l": 0.78074,
    "c": 0.215,
    "h": 138.6
  },
  "luminance": 0.51234
}

Semantic roles & 50–950 ramp

primary

#66D63B

secondary

#6D3184

accent

#3FE8B9

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160A

muted

#80847D

Preview Lab

Preview with #66D63B

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

Preview Lab → · Contrast checker → · Palette generator →