#66CAFD#66CAFD

#66CAFD is a light, moderate cyan. Relative luminance 0.522; OKLCH L 79.9% C 0.118 H 233.2°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#66CAFD
RGB	rgb(102, 202, 253)
HSL	hsl(200, 97%, 70%)
HSV	hsv(200, 60%, 99%)
CMYK	cmyk(59.7%, 20.2%, 0%, 0.8%)
CIE-LAB	lab(77.37, -14.73, -33.83)
CIE-LCH	lch(77.37, 36.90, 246.47°)
OKLab	oklab(79.86% -0.0709 -0.0946)
OKLCH	oklch(79.86% 0.118 233.2)
XYZ	xyz(44.3228, 52.1534, 100.6403)
Luminance	0.5216 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CAFD #FD9966

analogous

#66FDE5 #66CAFD #667FFD

triadic

#66CAFD #FD66CA #CAFD66

tetradic

#66CAFD #E566FD #FD9966 #7FFD66

square

#66CAFD #E566FD #FD9966 #7FFD66

split-complementary

#66CAFD #FD667F #FDE566

monochromatic

#0399E6 #2AB5FC #66CAFD #A2DFFE #DFF4FF

Accessibility & contrast

On white

1.84

#66CAFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.43

#66CAFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CAFD

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CAFD	#FFFFFF	#000000	##000000
##66CAFD	1.00	1.84	11.43	11.43
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.43	21.00	1.00	1.00
##000000	11.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1C8FF

Deuteranopia (green-blind)

#9CB8FC

Tritanopia (blue-blind)

#00D8DB

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #66cafd;
/* rgb */ color: rgb(102, 202, 253);
/* oklch */ color: oklch(79.9% 0.118 233.2);

Tailwind

colors: {
  custom: {
    50: '#9edafe',
    500: '#66cafd',
    950: '#000000',
  },
}

SCSS

$custom: #66cafd;
$custom-light: #9edafe;
$custom-dark: #000000;

JSON

{
  "hex": "#66cafd",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 253
  },
  "hsl": {
    "h": 200.265,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.79863,
    "c": 0.11821,
    "h": 233.2
  },
  "luminance": 0.52158
}

Semantic roles & 50–950 ramp

primary

#66CAFD

secondary

#D8682F

accent

#4E00E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1417

muted

#808385

Preview Lab

Preview with #66CAFD

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

Preview Lab → · Contrast checker → · Palette generator →