#66D5FA#66D5FA

#66D5FA is a very light, moderate cyan. Relative luminance 0.573; OKLCH L 82.2% C 0.113 H 222.7°. Best body text is #000000 at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#66D5FA
RGB	rgb(102, 213, 250)
HSL	hsl(195, 94%, 69%)
HSV	hsv(195, 59%, 98%)
CMYK	cmyk(59.2%, 14.8%, 0%, 2%)
CIE-LAB	lab(80.35, -21.28, -27.65)
CIE-LCH	lch(80.35, 34.89, 232.42°)
OKLab	oklab(82.2% -0.0833 -0.0769)
OKLCH	oklch(82.2% 0.113 222.7)
XYZ	xyz(46.5222, 57.3108, 99.0343)
Luminance	0.5732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D5FA #FA8B66

analogous

#66FAD5 #66D5FA #668BFA

triadic

#66D5FA #FA66D5 #D5FA66

tetradic

#66D5FA #D566FA #FA8B66 #8BFA66

square

#66D5FA #D566FA #FA8B66 #8BFA66

split-complementary

#66D5FA #FA668B #FAD566

monochromatic

#07A9DE #2BC5F8 #66D5FA #A1E5FC #DDF6FE

Accessibility & contrast

On white

1.68

#66D5FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.46

#66D5FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D5FA

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D5FA	#FFFFFF	#000000	##000000
##66D5FA	1.00	1.68	12.46	12.46
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.46	21.00	1.00	1.00
##000000	12.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0D0FC

Deuteranopia (green-blind)

#AAC0FA

Tritanopia (blue-blind)

#00E1E1

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #66d5fa;
/* rgb */ color: rgb(102, 213, 250);
/* oklch */ color: oklch(82.2% 0.113 222.7);

Tailwind

colors: {
  custom: {
    50: '#9ee2fc',
    500: '#66d5fa',
    950: '#000000',
  },
}

SCSS

$custom: #66d5fa;
$custom-light: #9ee2fc;
$custom-dark: #000000;

JSON

{
  "hex": "#66d5fa",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 250
  },
  "hsl": {
    "h": 195,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.82204,
    "c": 0.11343,
    "h": 222.7
  },
  "luminance": 0.57315
}

Semantic roles & 50–950 ramp

primary

#66D5FA

secondary

#D45930

accent

#3900E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66D5FA

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

Preview Lab → · Contrast checker → · Palette generator →