#66DBFB#66DBFB

#66DBFB is a very light, moderate cyan. Relative luminance 0.605; OKLCH L 83.6% C 0.114 H 218.5°. Best body text is #000000 at 13.09:1 contrast (WCAG AA passes).

Color values

HEX	#66DBFB
RGB	rgb(102, 219, 251)
HSL	hsl(193, 95%, 69%)
HSV	hsv(193, 59%, 98%)
CMYK	cmyk(59.4%, 12.7%, 0%, 1.6%)
CIE-LAB	lab(82.08, -23.99, -25.54)
CIE-LCH	lch(82.08, 35.04, 226.79°)
OKLab	oklab(83.6% -0.0892 -0.071)
OKLCH	oklch(83.6% 0.114 218.5)
XYZ	xyz(48.2166, 60.4480, 100.3747)
Luminance	0.6045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DBFB #FB8666

analogous

#66FBD1 #66DBFB #6691FB

triadic

#66DBFB #FB66DB #DBFB66

tetradic

#66DBFB #D166FB #FB8666 #91FB66

square

#66DBFB #D166FB #FB8666 #91FB66

split-complementary

#66DBFB #FB6691 #FBD166

monochromatic

#06B2E1 #2ACDF9 #66DBFB #A2E9FD #DDF7FE

Accessibility & contrast

On white

1.60

#66DBFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.09

#66DBFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DBFB

13.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DBFB	#FFFFFF	#000000	##000000
##66DBFB	1.00	1.60	13.09	13.09
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.09	21.00	1.00	1.00
##000000	13.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7D5FD

Deuteranopia (green-blind)

#B1C5FB

Tritanopia (blue-blind)

#00E6E5

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dbfb;
/* rgb */ color: rgb(102, 219, 251);
/* oklch */ color: oklch(83.6% 0.114 218.5);

Tailwind

colors: {
  custom: {
    50: '#9ee6fc',
    500: '#66dbfb',
    950: '#000000',
  },
}

SCSS

$custom: #66dbfb;
$custom-light: #9ee6fc;
$custom-dark: #000000;

JSON

{
  "hex": "#66dbfb",
  "rgb": {
    "r": 102,
    "g": 219,
    "b": 251
  },
  "hsl": {
    "h": 192.886,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.83597,
    "c": 0.11397,
    "h": 218.5
  },
  "luminance": 0.60453
}

Semantic roles & 50–950 ramp

primary

#66DBFB

secondary

#D55330

accent

#3100E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DBFB

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

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