#66CDFE#66CDFE

#66CDFE is a light, moderate cyan. Relative luminance 0.536; OKLCH L 80.6% C 0.118 H 231.4°. Best body text is #000000 at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#66CDFE
RGB	rgb(102, 205, 254)
HSL	hsl(199, 99%, 70%)
HSV	hsv(199, 60%, 100%)
CMYK	cmyk(59.8%, 19.3%, 0%, 0.4%)
CIE-LAB	lab(78.25, -16.00, -33.01)
CIE-LCH	lch(78.25, 36.68, 244.15°)
OKLab	oklab(80.57% -0.0736 -0.0922)
OKLCH	oklch(80.57% 0.118 231.4)
XYZ	xyz(45.1933, 53.6388, 101.7183)
Luminance	0.5364 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CDFE #FE9766

analogous

#66FEE3 #66CDFE #6681FE

triadic

#66CDFE #FE66CD #CDFE66

tetradic

#66CDFE #E366FE #FE9766 #81FE66

square

#66CDFE #E366FE #FE9766 #81FE66

split-complementary

#66CDFE #FE6681 #FEE366

monochromatic

#029EE8 #29B9FE #66CDFE #A3E1FE #E0F5FF

Accessibility & contrast

On white

1.79

#66CDFE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.73

#66CDFE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CDFE

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CDFE	#FFFFFF	#000000	##000000
##66CDFE	1.00	1.79	11.73	11.73
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.73	21.00	1.00	1.00
##000000	11.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5CAFF

Deuteranopia (green-blind)

#9FBBFD

Tritanopia (blue-blind)

#00DADD

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66cdfe;
/* rgb */ color: rgb(102, 205, 254);
/* oklch */ color: oklch(80.6% 0.118 231.4);

Tailwind

colors: {
  custom: {
    50: '#9edcff',
    500: '#66cdfe',
    950: '#000000',
  },
}

SCSS

$custom: #66cdfe;
$custom-light: #9edcff;
$custom-dark: #000000;

JSON

{
  "hex": "#66cdfe",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 254
  },
  "hsl": {
    "h": 199.342,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.80574,
    "c": 0.11803,
    "h": 231.4
  },
  "luminance": 0.53643
}

Semantic roles & 50–950 ramp

primary

#66CDFE

secondary

#D9662F

accent

#4A00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101518

muted

#808486

Preview Lab

Preview with #66CDFE

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

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