#66CE3C#66CE3C

#66CE3C is a light, highly saturated green. Relative luminance 0.473; OKLCH L 76.1% C 0.205 H 138.3°. Best body text is #000000 at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#66CE3C
RGB	rgb(102, 206, 60)
HSL	hsl(103, 60%, 52%)
HSV	hsv(103, 71%, 81%)
CMYK	cmyk(50.5%, 0%, 70.9%, 19.2%)
CIE-LAB	lab(74.38, -55.42, 60.18)
CIE-LCH	lch(74.38, 81.81, 132.64°)
OKLab	oklab(76.07% -0.153 0.1364)
OKLCH	oklch(76.07% 0.205 138.3)
XYZ	xyz(28.3654, 47.2915, 11.9076)
Luminance	0.4729 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CE3C #A43CCE

analogous

#AFCE3C #66CE3C #3CCE5B

triadic

#66CE3C #3C66CE #CE3C66

tetradic

#66CE3C #3CAFCE #A43CCE #CE5B3C

square

#66CE3C #3CAFCE #A43CCE #CE5B3C

split-complementary

#66CE3C #5B3CCE #CE3CAF

monochromatic

#36731D #4CA429 #66CE3C #8CDA6D #B3E79E

Accessibility & contrast

On white

2.01

#66CE3C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.46

#66CE3C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE3C

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CE3C	#FFFFFF	#000000	##000000
##66CE3C	1.00	2.01	10.46	10.46
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.46	21.00	1.00	1.00
##000000	10.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC24

Deuteranopia (green-blind)

#C7B44A

Tritanopia (blue-blind)

#5EC7B1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66ce3c;
/* rgb */ color: rgb(102, 206, 60);
/* oklch */ color: oklch(76.1% 0.205 138.3);

Tailwind

colors: {
  custom: {
    50: '#9bde7a',
    500: '#66ce3c',
    950: '#000000',
  },
}

SCSS

$custom: #66ce3c;
$custom-light: #9bde7a;
$custom-dark: #000000;

JSON

{
  "hex": "#66ce3c",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 60
  },
  "hsl": {
    "h": 102.74,
    "s": 59.836,
    "l": 52.157
  },
  "oklch": {
    "l": 0.76065,
    "c": 0.20495,
    "h": 138.3
  },
  "luminance": 0.47294
}

Semantic roles & 50–950 ramp

primary

#66CE3C

secondary

#C093D3

accent

#45E3B5

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CE3C

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

Preview Lab → · Contrast checker → · Palette generator →