#66CCFC#66CCFC

#66CCFC is a light, moderate cyan. Relative luminance 0.530; OKLCH L 80.3% C 0.117 H 231.1°. Best body text is #000000 at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#66CCFC
RGB	rgb(102, 204, 252)
HSL	hsl(199, 96%, 69%)
HSV	hsv(199, 60%, 99%)
CMYK	cmyk(59.5%, 19%, 0%, 1.2%)
CIE-LAB	lab(77.90, -16.08, -32.49)
CIE-LCH	lch(77.90, 36.25, 243.68°)
OKLab	oklab(80.27% -0.0733 -0.0907)
OKLCH	oklch(80.27% 0.117 231.1)
XYZ	xyz(44.6363, 53.0344, 99.9609)
Luminance	0.5304 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CCFC #FC9666

analogous

#66FCE1 #66CCFC #6681FC

triadic

#66CCFC #FC66CC #CCFC66

tetradic

#66CCFC #E166FC #FC9666 #81FC66

square

#66CCFC #E166FC #FC9666 #81FC66

split-complementary

#66CCFC #FC6681 #FCE166

monochromatic

#049CE3 #2AB8FB #66CCFC #A2E0FD #DEF4FE

Accessibility & contrast

On white

1.81

#66CCFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.61

#66CCFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CCFC

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CCFC	#FFFFFF	#000000	##000000
##66CCFC	1.00	1.81	11.61	11.61
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.61	21.00	1.00	1.00
##000000	11.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C9FE

Deuteranopia (green-blind)

#9FBAFB

Tritanopia (blue-blind)

#00D9DC

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66ccfc;
/* rgb */ color: rgb(102, 204, 252);
/* oklch */ color: oklch(80.3% 0.117 231.1);

Tailwind

colors: {
  custom: {
    50: '#9edbfd',
    500: '#66ccfc',
    950: '#000000',
  },
}

SCSS

$custom: #66ccfc;
$custom-light: #9edbfd;
$custom-dark: #000000;

JSON

{
  "hex": "#66ccfc",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 252
  },
  "hsl": {
    "h": 199.2,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.80266,
    "c": 0.11665,
    "h": 231.1
  },
  "luminance": 0.53039
}

Semantic roles & 50–950 ramp

primary

#66CCFC

secondary

#D66530

accent

#4900E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CCFC

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

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