#66CDFB#66CDFB

#66CDFB is a light, moderate cyan. Relative luminance 0.535; OKLCH L 80.4% C 0.116 H 229.7°. Best body text is #000000 at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#66CDFB
RGB	rgb(102, 205, 251)
HSL	hsl(199, 95%, 69%)
HSV	hsv(199, 59%, 98%)
CMYK	cmyk(59.4%, 18.3%, 0%, 1.6%)
CIE-LAB	lab(78.14, -16.89, -31.58)
CIE-LCH	lch(78.14, 35.82, 241.86°)
OKLab	oklab(80.45% -0.0747 -0.0882)
OKLCH	oklch(80.45% 0.116 229.7)
XYZ	xyz(44.7167, 53.4481, 99.2080)
Luminance	0.5345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CDFB #FB9466

analogous

#66FBDE #66CDFB #6683FB

triadic

#66CDFB #FB66CD #CDFB66

tetradic

#66CDFB #DE66FB #FB9466 #83FB66

square

#66CDFB #DE66FB #FB9466 #83FB66

split-complementary

#66CDFB #FB6683 #FBDE66

monochromatic

#069DE1 #2ABAF9 #66CDFB #A2E0FD #DDF4FE

Accessibility & contrast

On white

1.80

#66CDFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.69

#66CDFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CDFB

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CDFB	#FFFFFF	#000000	##000000
##66CDFB	1.00	1.80	11.69	11.69
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.69	21.00	1.00	1.00
##000000	11.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6CAFD

Deuteranopia (green-blind)

#A1BAFA

Tritanopia (blue-blind)

#00DADC

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cdfb;
/* rgb */ color: rgb(102, 205, 251);
/* oklch */ color: oklch(80.4% 0.116 229.7);

Tailwind

colors: {
  custom: {
    50: '#9edcfc',
    500: '#66cdfb',
    950: '#000000',
  },
}

SCSS

$custom: #66cdfb;
$custom-light: #9edcfc;
$custom-dark: #000000;

JSON

{
  "hex": "#66cdfb",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 251
  },
  "hsl": {
    "h": 198.523,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.80448,
    "c": 0.11554,
    "h": 229.7
  },
  "luminance": 0.53452
}

Semantic roles & 50–950 ramp

primary

#66CDFB

secondary

#D56330

accent

#4700E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CDFB

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

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