#66CCFF#66CCFF

#66CCFF is a light, moderate cyan. Relative luminance 0.532; OKLCH L 80.4% C 0.119 H 232.7°. Best body text is #000000 at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#66CCFF
RGB	rgb(102, 204, 255)
HSL	hsl(200, 100%, 70%)
HSV	hsv(200, 60%, 100%)
CMYK	cmyk(60%, 20%, 0%, 0%)
CIE-LAB	lab(78.01, -15.18, -33.92)
CIE-LCH	lch(78.01, 37.16, 245.89°)
OKLab	oklab(80.39% -0.0723 -0.0948)
OKLCH	oklch(80.39% 0.119 232.7)
XYZ	xyz(45.1154, 53.2261, 102.4844)
Luminance	0.5323 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CCFF #FF9966

analogous

#66FFE6 #66CCFF #6680FF

triadic

#66CCFF #FF66CC #CCFF66

tetradic

#66CCFF #E566FF #FF9966 #80FF66

square

#66CCFF #E566FF #FF9966 #80FF66

split-complementary

#66CCFF #FF6680 #FFE666

monochromatic

#009CEB #29B8FF #66CCFF #A3E0FF #E0F5FF

Accessibility & contrast

On white

1.80

#66CCFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.65

#66CCFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CCFF

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CCFF	#FFFFFF	#000000	##000000
##66CCFF	1.00	1.80	11.65	11.65
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.65	21.00	1.00	1.00
##000000	11.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3CAFF

Deuteranopia (green-blind)

#9EBAFE

Tritanopia (blue-blind)

#00DADD

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66ccff;
/* rgb */ color: rgb(102, 204, 255);
/* oklch */ color: oklch(80.4% 0.119 232.7);

Tailwind

colors: {
  custom: {
    50: '#9edbff',
    500: '#66ccff',
    950: '#000000',
  },
}

SCSS

$custom: #66ccff;
$custom-light: #9edbff;
$custom-dark: #000000;

JSON

{
  "hex": "#66ccff",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 255
  },
  "hsl": {
    "h": 200,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.80393,
    "c": 0.11923,
    "h": 232.7
  },
  "luminance": 0.53231
}

Semantic roles & 50–950 ramp

primary

#66CCFF

secondary

#DA682F

accent

#4D00E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#101518

muted

#808486

Preview Lab

Preview with #66CCFF

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

Preview Lab → · Contrast checker → · Palette generator →