#66CC33#66CC33

#66CC33 is a light, highly saturated green. Relative luminance 0.463; OKLCH L 75.5% C 0.208 H 137.5°. Best body text is #000000 at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#66CC33
RGB	rgb(102, 204, 51)
HSL	hsl(100, 60%, 50%)
HSV	hsv(100, 75%, 80%)
CMYK	cmyk(50%, 0%, 75%, 20%)
CIE-LAB	lab(73.71, -55.29, 62.66)
CIE-LCH	lch(73.71, 83.56, 131.42°)
OKLab	oklab(75.5% -0.1532 0.1403)
OKLCH	oklch(75.5% 0.208 137.5)
XYZ	xyz(27.6690, 46.2475, 10.6000)
Luminance	0.4625 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CC33 #9933CC

analogous

#B2CC33 #66CC33 #33CC4D

triadic

#66CC33 #3366CC #CC3366

tetradic

#66CC33 #33B2CC #9933CC #CC4C33

square

#66CC33 #33B2CC #9933CC #CC4C33

split-complementary

#66CC33 #4C33CC #CC33B2

monochromatic

#356A1B #4E9B27 #66CC33 #8BD864 #AFE495

Accessibility & contrast

On white

2.05

#66CC33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.25

#66CC33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CC33

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CC33	#FFFFFF	#000000	##000000
##66CC33	1.00	2.05	10.25	10.25
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.25	21.00	1.00	1.00
##000000	10.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BA10

Deuteranopia (green-blind)

#C5B243

Tritanopia (blue-blind)

#5FC5AF

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cc33;
/* rgb */ color: rgb(102, 204, 51);
/* oklch */ color: oklch(75.5% 0.208 137.5);

Tailwind

colors: {
  custom: {
    50: '#9bdc75',
    500: '#66cc33',
    950: '#000000',
  },
}

SCSS

$custom: #66cc33;
$custom-light: #9bdc75;
$custom-dark: #000000;

JSON

{
  "hex": "#66cc33",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 51
  },
  "hsl": {
    "h": 100,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.75495,
    "c": 0.20776,
    "h": 137.5
  },
  "luminance": 0.4625
}

Semantic roles & 50–950 ramp

primary

#66CC33

secondary

#B98BD0

accent

#45E3AE

background

#FAFDF7

surface

#F4FBED

border

#CED4C8

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CC33

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

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