#66CC2C#66CC2C

#66CC2C is a light, highly saturated yellow-green. Relative luminance 0.462; OKLCH L 75.5% C 0.211 H 137.1°. Best body text is #000000 at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#66CC2C
RGB	rgb(102, 204, 44)
HSL	hsl(98, 65%, 49%)
HSV	hsv(98, 78%, 80%)
CMYK	cmyk(50%, 0%, 78.4%, 20%)
CIE-LAB	lab(73.67, -55.70, 64.83)
CIE-LCH	lch(73.67, 85.47, 130.67°)
OKLab	oklab(75.45% -0.1547 0.1439)
OKLCH	oklch(75.45% 0.211 137.1)
XYZ	xyz(27.5261, 46.1904, 9.8475)
Luminance	0.4619 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC2C #922CCC

analogous

#B6CC2C #66CC2C #2CCC42

triadic

#66CC2C #2C66CC #CC2C66

tetradic

#66CC2C #2CB6CC #922CCC #CC422C

square

#66CC2C #2CB6CC #922CCC #CC422C

split-complementary

#66CC2C #422CCC #CC2CB6

monochromatic

#346716 #4D9A21 #66CC2C #89DB5A #ADE68C

Accessibility & contrast

On white

2.05

#66CC2C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.24

#66CC2C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC2C

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC2C	#FFFFFF	#000000	##000000
##66CC2C	1.00	2.05	10.24	10.24
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.24	21.00	1.00	1.00
##000000	10.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BA00

Deuteranopia (green-blind)

#C6B23E

Tritanopia (blue-blind)

#60C5AE

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cc2c;
/* rgb */ color: rgb(102, 204, 44);
/* oklch */ color: oklch(75.5% 0.211 137.1);

Tailwind

colors: {
  custom: {
    50: '#9bdc72',
    500: '#66cc2c',
    950: '#000000',
  },
}

SCSS

$custom: #66cc2c;
$custom-light: #9bdc72;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc2c",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 44
  },
  "hsl": {
    "h": 98.25,
    "s": 64.516,
    "l": 48.627
  },
  "oklch": {
    "l": 0.75453,
    "c": 0.21127,
    "h": 137.1
  },
  "luminance": 0.46192
}

Semantic roles & 50–950 ramp

primary

#66CC2C

secondary

#B483D0

accent

#40E8AB

background

#FAFDF7

surface

#F4FBED

border

#CED4C8

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CC2C

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

Preview Lab → · Contrast checker → · Palette generator →