#66D6FD#66D6FD

#66D6FD is a very light, moderate cyan. Relative luminance 0.580; OKLCH L 82.5% C 0.115 H 223.8°. Best body text is #000000 at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#66D6FD
RGB	rgb(102, 214, 253)
HSL	hsl(195, 97%, 70%)
HSV	hsv(195, 60%, 99%)
CMYK	cmyk(59.7%, 15.4%, 0%, 0.8%)
CIE-LAB	lab(80.74, -20.91, -28.65)
CIE-LCH	lch(80.74, 35.47, 233.88°)
OKLab	oklab(82.55% -0.0833 -0.0798)
OKLCH	oklch(82.55% 0.115 223.8)
XYZ	xyz(47.2487, 58.0051, 101.6155)
Luminance	0.5801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D6FD #FD8D66

analogous

#66FDD9 #66D6FD #668AFD

triadic

#66D6FD #FD66D6 #D6FD66

tetradic

#66D6FD #D966FD #FD8D66 #8AFD66

square

#66D6FD #D966FD #FD8D66 #8AFD66

split-complementary

#66D6FD #FD668A #FDD966

monochromatic

#03ABE6 #2AC6FC #66D6FD #A2E6FE #DFF6FF

Accessibility & contrast

On white

1.67

#66D6FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.60

#66D6FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D6FD

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D6FD	#FFFFFF	#000000	##000000
##66D6FD	1.00	1.67	12.60	12.60
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.60	21.00	1.00	1.00
##000000	12.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0D2FF

Deuteranopia (green-blind)

#AAC1FD

Tritanopia (blue-blind)

#00E2E2

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #66d6fd;
/* rgb */ color: rgb(102, 214, 253);
/* oklch */ color: oklch(82.5% 0.115 223.8);

Tailwind

colors: {
  custom: {
    50: '#9ee2fe',
    500: '#66d6fd',
    950: '#000000',
  },
}

SCSS

$custom: #66d6fd;
$custom-light: #9ee2fe;
$custom-dark: #000000;

JSON

{
  "hex": "#66d6fd",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 253
  },
  "hsl": {
    "h": 195.497,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.82549,
    "c": 0.11533,
    "h": 223.8
  },
  "luminance": 0.5801
}

Semantic roles & 50–950 ramp

primary

#66D6FD

secondary

#D85B2F

accent

#3B00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66D6FD

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

Preview Lab → · Contrast checker → · Palette generator →