#66AFFE#66AFFE

#66AFFE is a light, vivid cyan. Relative luminance 0.406; OKLCH L 74.0% C 0.137 H 251.8°. Best body text is #000000 at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#66AFFE
RGB	rgb(102, 175, 254)
HSL	hsl(211, 99%, 70%)
HSV	hsv(211, 60%, 100%)
CMYK	cmyk(59.8%, 31.1%, 0%, 0.4%)
CIE-LAB	lab(69.92, 0.22, -45.98)
CIE-LCH	lch(69.92, 45.98, 270.27°)
OKLab	oklab(73.99% -0.0426 -0.1298)
OKLCH	oklch(73.99% 0.137 251.8)
XYZ	xyz(38.6924, 40.6369, 99.5514)
Luminance	0.4064 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AFFE #FEB566

analogous

#66FBFE #66AFFE #6966FE

triadic

#66AFFE #FE66AF #AFFE66

tetradic

#66AFFE #FE66FB #FEB566 #66FE69

square

#66AFFE #FE66FB #FEB566 #66FE69

split-complementary

#66AFFE #FE6966 #FBFE66

monochromatic

#0270E8 #298FFE #66AFFE #A3CFFE #E0EFFF

Accessibility & contrast

On white

2.30

#66AFFE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.13

#66AFFE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AFFE

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AFFE	#FFFFFF	#000000	##000000
##66AFFE	1.00	2.30	9.13	9.13
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.13	21.00	1.00	1.00
##000000	9.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DB3FF

Deuteranopia (green-blind)

#79A4FC

Tritanopia (blue-blind)

#00C1CB

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66affe;
/* rgb */ color: rgb(102, 175, 254);
/* oklch */ color: oklch(74.0% 0.137 251.8);

Tailwind

colors: {
  custom: {
    50: '#9dc6ff',
    500: '#66affe',
    950: '#000000',
  },
}

SCSS

$custom: #66affe;
$custom-light: #9dc6ff;
$custom-dark: #000000;

JSON

{
  "hex": "#66affe",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 254
  },
  "hsl": {
    "h": 211.184,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.73989,
    "c": 0.13661,
    "h": 251.8
  },
  "luminance": 0.4064
}

Semantic roles & 50–950 ramp

primary

#66AFFE

secondary

#F5E1CA

accent

#7700E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #66AFFE

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

Preview Lab → · Contrast checker → · Palette generator →