#66D4FA#66D4FA

#66D4FA is a light, moderate cyan. Relative luminance 0.568; OKLCH L 82.0% C 0.114 H 223.5°. Best body text is #000000 at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#66D4FA
RGB	rgb(102, 212, 250)
HSL	hsl(195, 94%, 69%)
HSV	hsv(195, 59%, 98%)
CMYK	cmyk(59.2%, 15.2%, 0%, 2%)
CIE-LAB	lab(80.07, -20.77, -28.08)
CIE-LCH	lch(80.07, 34.93, 233.51°)
OKLab	oklab(81.98% -0.0823 -0.0782)
OKLCH	oklch(81.98% 0.114 223.5)
XYZ	xyz(46.2715, 56.8093, 98.9507)
Luminance	0.5681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D4FA #FA8C66

analogous

#66FAD6 #66D4FA #668AFA

triadic

#66D4FA #FA66D4 #D4FA66

tetradic

#66D4FA #D666FA #FA8C66 #8AFA66

square

#66D4FA #D666FA #FA8C66 #8AFA66

split-complementary

#66D4FA #FA668A #FAD666

monochromatic

#07A7DE #2BC3F8 #66D4FA #A1E5FC #DDF5FE

Accessibility & contrast

On white

1.70

#66D4FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.36

#66D4FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D4FA

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D4FA	#FFFFFF	#000000	##000000
##66D4FA	1.00	1.70	12.36	12.36
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.36	21.00	1.00	1.00
##000000	12.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BED0FC

Deuteranopia (green-blind)

#A9C0FA

Tritanopia (blue-blind)

#00E0E0

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #66d4fa;
/* rgb */ color: rgb(102, 212, 250);
/* oklch */ color: oklch(82.0% 0.114 223.5);

Tailwind

colors: {
  custom: {
    50: '#9ee1fc',
    500: '#66d4fa',
    950: '#000000',
  },
}

SCSS

$custom: #66d4fa;
$custom-light: #9ee1fc;
$custom-dark: #000000;

JSON

{
  "hex": "#66d4fa",
  "rgb": {
    "r": 102,
    "g": 212,
    "b": 250
  },
  "hsl": {
    "h": 195.405,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.81979,
    "c": 0.11351,
    "h": 223.5
  },
  "luminance": 0.56814
}

Semantic roles & 50–950 ramp

primary

#66D4FA

secondary

#D45A30

accent

#3B00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66D4FA

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

Preview Lab → · Contrast checker → · Palette generator →