#66C6FE#66C6FE

#66C6FE is a light, vivid cyan. Relative luminance 0.504; OKLCH L 79.0% C 0.121 H 236.6°. Best body text is #000000 at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#66C6FE
RGB	rgb(102, 198, 254)
HSL	hsl(202, 99%, 70%)
HSV	hsv(202, 60%, 100%)
CMYK	cmyk(59.8%, 22%, 0%, 0.4%)
CIE-LAB	lab(76.29, -12.33, -36.04)
CIE-LCH	lch(76.29, 38.09, 251.12°)
OKLab	oklab(79.02% -0.0664 -0.1009)
OKLCH	oklch(79.02% 0.121 236.6)
XYZ	xyz(43.5562, 50.3645, 101.1726)
Luminance	0.5037 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C6FE #FE9E66

analogous

#66FEEA #66C6FE #667AFE

triadic

#66C6FE #FE66C6 #C6FE66

tetradic

#66C6FE #EA66FE #FE9E66 #7AFE66

square

#66C6FE #EA66FE #FE9E66 #7AFE66

split-complementary

#66C6FE #FE667A #FEEA66

monochromatic

#0293E8 #29AFFE #66C6FE #A3DDFE #E0F3FF

Accessibility & contrast

On white

1.90

#66C6FE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.07

#66C6FE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C6FE

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C6FE	#FFFFFF	#000000	##000000
##66C6FE	1.00	1.90	11.07	11.07
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.07	21.00	1.00	1.00
##000000	11.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACC5FF

Deuteranopia (green-blind)

#97B5FD

Tritanopia (blue-blind)

#00D4D9

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #66c6fe;
/* rgb */ color: rgb(102, 198, 254);
/* oklch */ color: oklch(79.0% 0.121 236.6);

Tailwind

colors: {
  custom: {
    50: '#9ed7ff',
    500: '#66c6fe',
    950: '#000000',
  },
}

SCSS

$custom: #66c6fe;
$custom-light: #9ed7ff;
$custom-dark: #000000;

JSON

{
  "hex": "#66c6fe",
  "rgb": {
    "r": 102,
    "g": 198,
    "b": 254
  },
  "hsl": {
    "h": 202.105,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.79017,
    "c": 0.12082,
    "h": 236.6
  },
  "luminance": 0.50369
}

Semantic roles & 50–950 ramp

primary

#66C6FE

secondary

#D96E2F

accent

#5500E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1418

muted

#808386

Preview Lab

Preview with #66C6FE

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

Preview Lab → · Contrast checker → · Palette generator →