#66CDEE#66CDEE

#66CDEE is a light, moderate cyan. Relative luminance 0.527; OKLCH L 79.9% C 0.106 H 221.6°. Best body text is #000000 at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#66CDEE
RGB	rgb(102, 205, 238)
HSL	hsl(195, 80%, 67%)
HSV	hsv(195, 57%, 93%)
CMYK	cmyk(57.1%, 13.9%, 0%, 6.7%)
CIE-LAB	lab(77.67, -20.70, -25.34)
CIE-LCH	lch(77.67, 32.73, 230.76°)
OKLab	oklab(79.92% -0.0794 -0.0704)
OKLCH	oklch(79.92% 0.106 221.6)
XYZ	xyz(42.7374, 52.6564, 88.7838)
Luminance	0.5266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CDEE #EE8766

analogous

#66EECB #66CDEE #6689EE

triadic

#66CDEE #EE66CD #CDEE66

tetradic

#66CDEE #CB66EE #EE8766 #89EE66

square

#66CDEE #CB66EE #EE8766 #89EE66

split-complementary

#66CDEE #EE6689 #EECB66

monochromatic

#169AC4 #2FBBE8 #66CDEE #9DDFF4 #D4F1FA

Accessibility & contrast

On white

1.82

#66CDEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.53

#66CDEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CDEE

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CDEE	#FFFFFF	#000000	##000000
##66CDEE	1.00	1.82	11.53	11.53
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.53	21.00	1.00	1.00
##000000	11.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9C8F0

Deuteranopia (green-blind)

#A6BAEE

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66cdee;
/* rgb */ color: rgb(102, 205, 238);
/* oklch */ color: oklch(79.9% 0.106 221.6);

Tailwind

colors: {
  custom: {
    50: '#9cdcf3',
    500: '#66cdee',
    950: '#000000',
  },
}

SCSS

$custom: #66cdee;
$custom-light: #9cdcf3;
$custom-dark: #000000;

JSON

{
  "hex": "#66cdee",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 238
  },
  "hsl": {
    "h": 194.559,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.7992,
    "c": 0.10611,
    "h": 221.6
  },
  "luminance": 0.5266
}

Semantic roles & 50–950 ramp

primary

#66CDEE

secondary

#C25837

accent

#3C09DC

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CDEE

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

Preview Lab → · Contrast checker → · Palette generator →