#66DDEE#66DDEE

#66DDEE is a very light, moderate teal. Relative luminance 0.607; OKLCH L 83.6% C 0.109 H 207.9°. Best body text is #000000 at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#66DDEE
RGB	rgb(102, 221, 238)
HSL	hsl(188, 80%, 67%)
HSV	hsv(188, 57%, 93%)
CMYK	cmyk(57.1%, 7.1%, 0%, 6.7%)
CIE-LAB	lab(82.22, -28.64, -18.44)
CIE-LCH	lch(82.22, 34.07, 212.77°)
OKLab	oklab(83.57% -0.0962 -0.051)
OKLCH	oklch(83.57% 0.109 207.9)
XYZ	xyz(46.7622, 60.7061, 90.1254)
Luminance	0.6071 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DDEE #EE7766

analogous

#66EEBB #66DDEE #6699EE

triadic

#66DDEE #EE66DD #DDEE66

tetradic

#66DDEE #BB66EE #EE7766 #99EE66

square

#66DDEE #BB66EE #EE7766 #99EE66

split-complementary

#66DDEE #EE6699 #EEBB66

monochromatic

#16AEC4 #2FD1E8 #66DDEE #9DE9F4 #D4F5FA

Accessibility & contrast

On white

1.60

#66DDEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.14

#66DDEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DDEE

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DDEE	#FFFFFF	#000000	##000000
##66DDEE	1.00	1.60	13.14	13.14
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.14	21.00	1.00	1.00
##000000	13.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCD5EF

Deuteranopia (green-blind)

#B7C6EE

Tritanopia (blue-blind)

#00E6E2

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66ddee;
/* rgb */ color: rgb(102, 221, 238);
/* oklch */ color: oklch(83.6% 0.109 207.9);

Tailwind

colors: {
  custom: {
    50: '#9de8f3',
    500: '#66ddee',
    950: '#000000',
  },
}

SCSS

$custom: #66ddee;
$custom-light: #9de8f3;
$custom-dark: #000000;

JSON

{
  "hex": "#66ddee",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 238
  },
  "hsl": {
    "h": 187.5,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.83568,
    "c": 0.10892,
    "h": 207.9
  },
  "luminance": 0.60711
}

Semantic roles & 50–950 ramp

primary

#66DDEE

secondary

#C24837

accent

#2409DC

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #66DDEE

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

Preview Lab → · Contrast checker → · Palette generator →