#66DCF8#66DCF8

#66DCF8 is a very light, moderate cyan. Relative luminance 0.608; OKLCH L 83.7% C 0.113 H 215.7°. Best body text is #000000 at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#66DCF8
RGB	rgb(102, 220, 248)
HSL	hsl(192, 91%, 69%)
HSV	hsv(192, 59%, 97%)
CMYK	cmyk(58.9%, 11.3%, 0%, 2.7%)
CIE-LAB	lab(82.26, -25.35, -23.68)
CIE-LCH	lch(82.26, 34.69, 223.05°)
OKLab	oklab(83.71% -0.0913 -0.0657)
OKLCH	oklch(83.71% 0.113 215.7)
XYZ	xyz(48.0091, 60.7837, 97.9911)
Luminance	0.6079 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DCF8 #F88266

analogous

#66F8CB #66DCF8 #6693F8

triadic

#66DCF8 #F866DC #DCF866

tetradic

#66DCF8 #CB66F8 #F88266 #93F866

square

#66DCF8 #CB66F8 #F88266 #93F866

split-complementary

#66DCF8 #F86693 #F8CB66

monochromatic

#0AB2DA #2BCFF5 #66DCF8 #A1E9FB #DBF7FD

Accessibility & contrast

On white

1.60

#66DCF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.16

#66DCF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DCF8

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DCF8	#FFFFFF	#000000	##000000
##66DCF8	1.00	1.60	13.16	13.16
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.16	21.00	1.00	1.00
##000000	13.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9D6FA

Deuteranopia (green-blind)

#B3C6F8

Tritanopia (blue-blind)

#00E6E5

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #66dcf8;
/* rgb */ color: rgb(102, 220, 248);
/* oklch */ color: oklch(83.7% 0.113 215.7);

Tailwind

colors: {
  custom: {
    50: '#9ee7fa',
    500: '#66dcf8',
    950: '#000000',
  },
}

SCSS

$custom: #66dcf8;
$custom-light: #9ee7fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66dcf8",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 248
  },
  "hsl": {
    "h": 191.507,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.83709,
    "c": 0.11252,
    "h": 215.7
  },
  "luminance": 0.60788
}

Semantic roles & 50–950 ramp

primary

#66DCF8

secondary

#D25031

accent

#2C00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DCF8

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

Preview Lab → · Contrast checker → · Palette generator →