#66CEEB#66CEEB

#66CEEB is a light, moderate cyan. Relative luminance 0.530; OKLCH L 80.0% C 0.104 H 218.6°. Best body text is #000000 at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#66CEEB
RGB	rgb(102, 206, 235)
HSL	hsl(193, 77%, 66%)
HSV	hsv(193, 57%, 92%)
CMYK	cmyk(56.6%, 12.3%, 0%, 7.8%)
CIE-LAB	lab(77.85, -22.07, -23.46)
CIE-LCH	lch(77.85, 32.21, 226.75°)
OKLab	oklab(80.03% -0.0816 -0.0651)
OKLCH	oklch(80.03% 0.104 218.6)
XYZ	xyz(42.5403, 52.9615, 86.5619)
Luminance	0.5297 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CEEB #EB8366

analogous

#66EBC6 #66CEEB #668BEB

triadic

#66CEEB #EB66CE #CEEB66

tetradic

#66CEEB #C666EB #EB8366 #8BEB66

square

#66CEEB #C666EB #EB8366 #8BEB66

split-complementary

#66CEEB #EB668B #EBC666

monochromatic

#199ABE #30BDE4 #66CEEB #9CDFF2 #D2F1F9

Accessibility & contrast

On white

1.81

#66CEEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.59

#66CEEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CEEB

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CEEB	#FFFFFF	#000000	##000000
##66CEEB	1.00	1.81	11.59	11.59
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.59	21.00	1.00	1.00
##000000	11.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC9ED

Deuteranopia (green-blind)

#A8BAEB

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66ceeb;
/* rgb */ color: rgb(102, 206, 235);
/* oklch */ color: oklch(80.0% 0.104 218.6);

Tailwind

colors: {
  custom: {
    50: '#9cddf1',
    500: '#66ceeb',
    950: '#000000',
  },
}

SCSS

$custom: #66ceeb;
$custom-light: #9cddf1;
$custom-dark: #000000;

JSON

{
  "hex": "#66ceeb",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 235
  },
  "hsl": {
    "h": 193.083,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.8003,
    "c": 0.10436,
    "h": 218.6
  },
  "luminance": 0.52966
}

Semantic roles & 50–950 ramp

primary

#66CEEB

secondary

#BD5539

accent

#390CD9

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66CEEB

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

Preview Lab → · Contrast checker → · Palette generator →