#66DAEF#66DAEF

#66DAEF is a very light, moderate teal. Relative luminance 0.592; OKLCH L 82.9% C 0.108 H 211.1°. Best body text is #000000 at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#66DAEF
RGB	rgb(102, 218, 239)
HSL	hsl(189, 81%, 67%)
HSV	hsv(189, 57%, 94%)
CMYK	cmyk(57.3%, 8.8%, 0%, 6.3%)
CIE-LAB	lab(81.40, -26.90, -20.21)
CIE-LCH	lch(81.40, 33.65, 216.92°)
OKLab	oklab(82.92% -0.0927 -0.056)
OKLCH	oklch(82.92% 0.108 211.1)
XYZ	xyz(46.1246, 59.1950, 90.6396)
Luminance	0.5920 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DAEF #EF7B66

analogous

#66EFC0 #66DAEF #6696EF

triadic

#66DAEF #EF66DA #DAEF66

tetradic

#66DAEF #C066EF #EF7B66 #96EF66

square

#66DAEF #C066EF #EF7B66 #96EF66

split-complementary

#66DAEF #EF6696 #EFC066

monochromatic

#15ABC6 #2FCDE9 #66DAEF #9DE7F5 #D5F5FB

Accessibility & contrast

On white

1.64

#66DAEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.84

#66DAEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DAEF

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DAEF	#FFFFFF	#000000	##000000
##66DAEF	1.00	1.64	12.84	12.84
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.84	21.00	1.00	1.00
##000000	12.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9D3F0

Deuteranopia (green-blind)

#B4C4EF

Tritanopia (blue-blind)

#00E3E0

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #66daef;
/* rgb */ color: rgb(102, 218, 239);
/* oklch */ color: oklch(82.9% 0.108 211.1);

Tailwind

colors: {
  custom: {
    50: '#9de5f4',
    500: '#66daef',
    950: '#000000',
  },
}

SCSS

$custom: #66daef;
$custom-light: #9de5f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66daef",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 239
  },
  "hsl": {
    "h": 189.197,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.82918,
    "c": 0.10829,
    "h": 211.1
  },
  "luminance": 0.592
}

Semantic roles & 50–950 ramp

primary

#66DAEF

secondary

#C34C36

accent

#2908DD

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #66DAEF

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

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