#66CDFD#66CDFD

#66CDFD is a light, moderate cyan. Relative luminance 0.536; OKLCH L 80.5% C 0.117 H 230.8°. Best body text is #000000 at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#66CDFD
RGB	rgb(102, 205, 253)
HSL	hsl(199, 97%, 70%)
HSV	hsv(199, 60%, 99%)
CMYK	cmyk(59.7%, 19%, 0%, 0.8%)
CIE-LAB	lab(78.21, -16.30, -32.54)
CIE-LCH	lch(78.21, 36.39, 243.40°)
OKLab	oklab(80.53% -0.074 -0.0909)
OKLCH	oklch(80.53% 0.117 230.8)
XYZ	xyz(45.0336, 53.5749, 100.8772)
Luminance	0.5358 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CDFD #FD9666

analogous

#66FDE2 #66CDFD #6682FD

triadic

#66CDFD #FD66CD #CDFD66

tetradic

#66CDFD #E266FD #FD9666 #82FD66

square

#66CDFD #E266FD #FD9666 #82FD66

split-complementary

#66CDFD #FD6682 #FDE266

monochromatic

#039EE6 #2AB9FC #66CDFD #A2E1FE #DFF4FF

Accessibility & contrast

On white

1.79

#66CDFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.72

#66CDFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CDFD

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CDFD	#FFFFFF	#000000	##000000
##66CDFD	1.00	1.79	11.72	11.72
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.72	21.00	1.00	1.00
##000000	11.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5CAFF

Deuteranopia (green-blind)

#A0BBFC

Tritanopia (blue-blind)

#00DADD

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cdfd;
/* rgb */ color: rgb(102, 205, 253);
/* oklch */ color: oklch(80.5% 0.117 230.8);

Tailwind

colors: {
  custom: {
    50: '#9edcfe',
    500: '#66cdfd',
    950: '#000000',
  },
}

SCSS

$custom: #66cdfd;
$custom-light: #9edcfe;
$custom-dark: #000000;

JSON

{
  "hex": "#66cdfd",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 253
  },
  "hsl": {
    "h": 199.073,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.80532,
    "c": 0.11718,
    "h": 230.8
  },
  "luminance": 0.53579
}

Semantic roles & 50–950 ramp

primary

#66CDFD

secondary

#D8652F

accent

#4900E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66CDFD

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

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