#66CCFD#66CCFD

#66CCFD is a light, moderate cyan. Relative luminance 0.531; OKLCH L 80.3% C 0.117 H 231.6°. Best body text is #000000 at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#66CCFD
RGB	rgb(102, 204, 253)
HSL	hsl(199, 97%, 70%)
HSV	hsv(199, 60%, 99%)
CMYK	cmyk(59.7%, 19.4%, 0%, 0.8%)
CIE-LAB	lab(77.93, -15.78, -32.97)
CIE-LCH	lch(77.93, 36.55, 244.43°)
OKLab	oklab(80.31% -0.073 -0.0921)
OKLCH	oklch(80.31% 0.118 231.6)
XYZ	xyz(44.7951, 53.0980, 100.7977)
Luminance	0.5310 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CCFD #FD9766

analogous

#66FDE2 #66CCFD #6681FD

triadic

#66CCFD #FD66CC #CCFD66

tetradic

#66CCFD #E266FD #FD9766 #81FD66

square

#66CCFD #E266FD #FD9766 #81FD66

split-complementary

#66CCFD #FD6681 #FDE266

monochromatic

#039CE6 #2AB8FC #66CCFD #A2E0FE #DFF4FF

Accessibility & contrast

On white

1.81

#66CCFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.62

#66CCFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CCFD

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CCFD	#FFFFFF	#000000	##000000
##66CCFD	1.00	1.81	11.62	11.62
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.62	21.00	1.00	1.00
##000000	11.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4CAFF

Deuteranopia (green-blind)

#9FBAFC

Tritanopia (blue-blind)

#00D9DC

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66ccfd;
/* rgb */ color: rgb(102, 204, 253);
/* oklch */ color: oklch(80.3% 0.117 231.6);

Tailwind

colors: {
  custom: {
    50: '#9edbfe',
    500: '#66ccfd',
    950: '#000000',
  },
}

SCSS

$custom: #66ccfd;
$custom-light: #9edbfe;
$custom-dark: #000000;

JSON

{
  "hex": "#66ccfd",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 253
  },
  "hsl": {
    "h": 199.47,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.80308,
    "c": 0.1175,
    "h": 231.6
  },
  "luminance": 0.53102
}

Semantic roles & 50–950 ramp

primary

#66CCFD

secondary

#D8662F

accent

#4A00E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#101517

muted

#808485

Preview Lab

Preview with #66CCFD

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

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