#66CFEE#66CFEE

#66CFEE is a light, moderate cyan. Relative luminance 0.536; OKLCH L 80.4% C 0.106 H 219.8°. Best body text is #000000 at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#66CFEE
RGB	rgb(102, 207, 238)
HSL	hsl(194, 80%, 67%)
HSV	hsv(194, 57%, 93%)
CMYK	cmyk(57.1%, 13%, 0%, 6.7%)
CIE-LAB	lab(78.24, -21.72, -24.48)
CIE-LCH	lch(78.24, 32.72, 228.42°)
OKLab	oklab(80.37% -0.0815 -0.068)
OKLCH	oklch(80.37% 0.106 219.8)
XYZ	xyz(43.2188, 53.6193, 88.9443)
Luminance	0.5362 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CFEE #EE8566

analogous

#66EEC9 #66CFEE #668BEE

triadic

#66CFEE #EE66CF #CFEE66

tetradic

#66CFEE #C966EE #EE8566 #8BEE66

square

#66CFEE #C966EE #EE8566 #8BEE66

split-complementary

#66CFEE #EE668B #EEC966

monochromatic

#169CC4 #2FBEE8 #66CFEE #9DE0F4 #D4F2FA

Accessibility & contrast

On white

1.79

#66CFEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.72

#66CFEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CFEE

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CFEE	#FFFFFF	#000000	##000000
##66CFEE	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)

#BCCAF0

Deuteranopia (green-blind)

#A8BBEE

Tritanopia (blue-blind)

#00D9D9

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cfee;
/* rgb */ color: rgb(102, 207, 238);
/* oklch */ color: oklch(80.4% 0.106 219.8);

Tailwind

colors: {
  custom: {
    50: '#9dddf3',
    500: '#66cfee',
    950: '#000000',
  },
}

SCSS

$custom: #66cfee;
$custom-light: #9dddf3;
$custom-dark: #000000;

JSON

{
  "hex": "#66cfee",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 238
  },
  "hsl": {
    "h": 193.676,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.80374,
    "c": 0.10612,
    "h": 219.8
  },
  "luminance": 0.53623
}

Semantic roles & 50–950 ramp

primary

#66CFEE

secondary

#C25637

accent

#3909DC

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CFEE

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

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