#66DCFD#66DCFD

#66DCFD is a very light, moderate cyan. Relative luminance 0.611; OKLCH L 83.9% C 0.115 H 219.0°. Best body text is #000000 at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#66DCFD
RGB	rgb(102, 220, 253)
HSL	hsl(193, 97%, 70%)
HSV	hsv(193, 60%, 99%)
CMYK	cmyk(59.7%, 13%, 0%, 0.8%)
CIE-LAB	lab(82.43, -23.91, -26.07)
CIE-LCH	lch(82.43, 35.38, 227.47°)
OKLab	oklab(83.9% -0.0894 -0.0725)
OKLCH	oklch(83.9% 0.115 219)
XYZ	xyz(48.7952, 61.0981, 102.1311)
Luminance	0.6110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DCFD #FD8766

analogous

#66FDD3 #66DCFD #6690FD

triadic

#66DCFD #FD66DC #DCFD66

tetradic

#66DCFD #D366FD #FD8766 #90FD66

square

#66DCFD #D366FD #FD8766 #90FD66

split-complementary

#66DCFD #FD6690 #FDD366

monochromatic

#03B4E6 #2ACEFC #66DCFD #A2EAFE #DFF8FF

Accessibility & contrast

On white

1.59

#66DCFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.22

#66DCFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DCFD

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DCFD	#FFFFFF	#000000	##000000
##66DCFD	1.00	1.59	13.22	13.22
#FFFFFF	1.59	1.00	21.00	21.00
#000000	13.22	21.00	1.00	1.00
##000000	13.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7D6FF

Deuteranopia (green-blind)

#B1C6FD

Tritanopia (blue-blind)

#00E7E6

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #66dcfd;
/* rgb */ color: rgb(102, 220, 253);
/* oklch */ color: oklch(83.9% 0.115 219.0);

Tailwind

colors: {
  custom: {
    50: '#9fe7fe',
    500: '#66dcfd',
    950: '#000000',
  },
}

SCSS

$custom: #66dcfd;
$custom-light: #9fe7fe;
$custom-dark: #000000;

JSON

{
  "hex": "#66dcfd",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 253
  },
  "hsl": {
    "h": 193.113,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.83901,
    "c": 0.11512,
    "h": 219
  },
  "luminance": 0.61103
}

Semantic roles & 50–950 ramp

primary

#66DCFD

secondary

#D8542F

accent

#3200E6

background

#FDFEFF

surface

#F7FCFF

border

#D0D5D7

text

#101617

muted

#818485

Preview Lab

Preview with #66DCFD

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

Preview Lab → · Contrast checker → · Palette generator →