#66AFFD#66AFFD

#66AFFD is a light, vivid cyan. Relative luminance 0.406; OKLCH L 73.9% C 0.135 H 251.5°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#66AFFD
RGB	rgb(102, 175, 253)
HSL	hsl(211, 97%, 70%)
HSV	hsv(211, 60%, 99%)
CMYK	cmyk(59.7%, 30.8%, 0%, 0.8%)
CIE-LAB	lab(69.88, -0.10, -45.51)
CIE-LCH	lch(69.88, 45.51, 269.88°)
OKLab	oklab(73.94% -0.0429 -0.1284)
OKLCH	oklch(73.94% 0.135 251.5)
XYZ	xyz(38.5327, 40.5730, 98.7102)
Luminance	0.4058 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AFFD #FDB466

analogous

#66FBFD #66AFFD #6966FD

triadic

#66AFFD #FD66AF #AFFD66

tetradic

#66AFFD #FD66FB #FDB466 #66FD69

square

#66AFFD #FD66FB #FDB466 #66FD69

split-complementary

#66AFFD #FD6966 #FBFD66

monochromatic

#0371E6 #2A8FFC #66AFFD #A2CFFE #DFEEFF

Accessibility & contrast

On white

2.30

#66AFFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.12

#66AFFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AFFD

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AFFD	#FFFFFF	#000000	##000000
##66AFFD	1.00	2.30	9.12	9.12
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.12	21.00	1.00	1.00
##000000	9.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EB3FF

Deuteranopia (green-blind)

#7AA4FB

Tritanopia (blue-blind)

#00C1CB

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66affd;
/* rgb */ color: rgb(102, 175, 253);
/* oklch */ color: oklch(73.9% 0.135 251.5);

Tailwind

colors: {
  custom: {
    50: '#9dc6fe',
    500: '#66affd',
    950: '#000000',
  },
}

SCSS

$custom: #66affd;
$custom-light: #9dc6fe;
$custom-dark: #000000;

JSON

{
  "hex": "#66affd",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 253
  },
  "hsl": {
    "h": 210.993,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.73939,
    "c": 0.13541,
    "h": 251.5
  },
  "luminance": 0.40577
}

Semantic roles & 50–950 ramp

primary

#66AFFD

secondary

#F5E0CA

accent

#7700E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #66AFFD

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

Preview Lab → · Contrast checker → · Palette generator →