#66ADFE#66ADFE

#66ADFE is a light, vivid cyan. Relative luminance 0.399; OKLCH L 73.6% C 0.138 H 253.0°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#66ADFE
RGB	rgb(102, 173, 254)
HSL	hsl(212, 99%, 70%)
HSV	hsv(212, 60%, 100%)
CMYK	cmyk(59.8%, 31.9%, 0%, 0.4%)
CIE-LAB	lab(69.37, 1.34, -46.84)
CIE-LCH	lch(69.37, 46.86, 271.64°)
OKLab	oklab(73.56% -0.0406 -0.1323)
OKLCH	oklch(73.56% 0.138 253)
XYZ	xyz(38.3060, 39.8642, 99.4226)
Luminance	0.3987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ADFE #FEB766

analogous

#66F9FE #66ADFE #6B66FE

triadic

#66ADFE #FE66AD #ADFE66

tetradic

#66ADFE #FE66F9 #FEB766 #66FE6B

square

#66ADFE #FE66F9 #FEB766 #66FE6B

split-complementary

#66ADFE #FE6B66 #F9FE66

monochromatic

#026DE8 #298CFE #66ADFE #A3CEFE #E0EEFF

Accessibility & contrast

On white

2.34

#66ADFE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.97

#66ADFE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ADFE

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ADFE	#FFFFFF	#000000	##000000
##66ADFE	1.00	2.34	8.97	8.97
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.97	21.00	1.00	1.00
##000000	8.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BB1FF

Deuteranopia (green-blind)

#76A3FC

Tritanopia (blue-blind)

#00C0CA

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66adfe;
/* rgb */ color: rgb(102, 173, 254);
/* oklch */ color: oklch(73.6% 0.138 253.0);

Tailwind

colors: {
  custom: {
    50: '#9dc5ff',
    500: '#66adfe',
    950: '#000000',
  },
}

SCSS

$custom: #66adfe;
$custom-light: #9dc5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#66adfe",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 254
  },
  "hsl": {
    "h": 211.974,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.73559,
    "c": 0.1384,
    "h": 253
  },
  "luminance": 0.39868
}

Semantic roles & 50–950 ramp

primary

#66ADFE

secondary

#F5E1CA

accent

#7A00E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1218

muted

#7F8186

Preview Lab

Preview with #66ADFE

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

Preview Lab → · Contrast checker → · Palette generator →