#66DBF8#66DBF8

#66DBF8 is a very light, moderate cyan. Relative luminance 0.603; OKLCH L 83.5% C 0.112 H 216.5°. Best body text is #000000 at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#66DBF8
RGB	rgb(102, 219, 248)
HSL	hsl(192, 91%, 69%)
HSV	hsv(192, 59%, 97%)
CMYK	cmyk(58.9%, 11.7%, 0%, 2.7%)
CIE-LAB	lab(81.98, -24.85, -24.11)
CIE-LCH	lch(81.98, 34.62, 224.13°)
OKLab	oklab(83.48% -0.0903 -0.0669)
OKLCH	oklch(83.48% 0.112 216.5)
XYZ	xyz(47.7475, 60.2604, 97.9038)
Luminance	0.6027 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DBF8 #F88366

analogous

#66F8CC #66DBF8 #6692F8

triadic

#66DBF8 #F866DB #DBF866

tetradic

#66DBF8 #CC66F8 #F88366 #92F866

square

#66DBF8 #CC66F8 #F88366 #92F866

split-complementary

#66DBF8 #F86692 #F8CC66

monochromatic

#0AB0DA #2BCDF5 #66DBF8 #A1E9FB #DBF7FD

Accessibility & contrast

On white

1.61

#66DBF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.05

#66DBF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DBF8

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DBF8	#FFFFFF	#000000	##000000
##66DBF8	1.00	1.61	13.05	13.05
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.05	21.00	1.00	1.00
##000000	13.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7D5FA

Deuteranopia (green-blind)

#B2C5F8

Tritanopia (blue-blind)

#00E6E4

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dbf8;
/* rgb */ color: rgb(102, 219, 248);
/* oklch */ color: oklch(83.5% 0.112 216.5);

Tailwind

colors: {
  custom: {
    50: '#9ee6fa',
    500: '#66dbf8',
    950: '#000000',
  },
}

SCSS

$custom: #66dbf8;
$custom-light: #9ee6fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66dbf8",
  "rgb": {
    "r": 102,
    "g": 219,
    "b": 248
  },
  "hsl": {
    "h": 191.918,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.83482,
    "c": 0.11239,
    "h": 216.5
  },
  "luminance": 0.60265
}

Semantic roles & 50–950 ramp

primary

#66DBF8

secondary

#D25131

accent

#2E00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DBF8

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

Preview Lab → · Contrast checker → · Palette generator →