#66CE38#66CE38

#66CE38 is a light, highly saturated green. Relative luminance 0.473; OKLCH L 76.0% C 0.207 H 138.0°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#66CE38
RGB	rgb(102, 206, 56)
HSL	hsl(102, 60%, 51%)
HSV	hsv(102, 73%, 81%)
CMYK	cmyk(50.5%, 0%, 72.8%, 19.2%)
CIE-LAB	lab(74.35, -55.71, 61.59)
CIE-LCH	lch(74.35, 83.05, 132.13°)
OKLab	oklab(76.04% -0.154 0.1388)
OKLCH	oklch(76.04% 0.207 138)
XYZ	xyz(28.2636, 47.2508, 11.3716)
Luminance	0.4725 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CE38 #A038CE

analogous

#B1CE38 #66CE38 #38CE55

triadic

#66CE38 #3866CE #CE3866

tetradic

#66CE38 #38B1CE #A038CE #CE5538

square

#66CE38 #38B1CE #A038CE #CE5538

split-complementary

#66CE38 #5538CE #CE38B1

monochromatic

#35701C #4DA128 #66CE38 #8CDA69 #B2E69A

Accessibility & contrast

On white

2.01

#66CE38 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.45

#66CE38 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE38

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CE38	#FFFFFF	#000000	##000000
##66CE38	1.00	2.01	10.45	10.45
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.45	21.00	1.00	1.00
##000000	10.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC1C

Deuteranopia (green-blind)

#C7B447

Tritanopia (blue-blind)

#5EC7B1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66ce38;
/* rgb */ color: rgb(102, 206, 56);
/* oklch */ color: oklch(76.0% 0.207 138.0);

Tailwind

colors: {
  custom: {
    50: '#9bde78',
    500: '#66ce38',
    950: '#000000',
  },
}

SCSS

$custom: #66ce38;
$custom-light: #9bde78;
$custom-dark: #000000;

JSON

{
  "hex": "#66ce38",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 56
  },
  "hsl": {
    "h": 101.6,
    "s": 60.484,
    "l": 51.373
  },
  "oklch": {
    "l": 0.76035,
    "c": 0.20733,
    "h": 138
  },
  "luminance": 0.47253
}

Semantic roles & 50–950 ramp

primary

#66CE38

secondary

#BE90D2

accent

#44E4B3

background

#FAFDF7

surface

#F4FBEE

border

#CED4C9

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CE38

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

Preview Lab → · Contrast checker → · Palette generator →