#66DDE9#66DDE9

#66DDE9 is a very light, moderate teal. Relative luminance 0.604; OKLCH L 83.4% C 0.108 H 204.3°. Best body text is #000000 at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#66DDE9
RGB	rgb(102, 221, 233)
HSL	hsl(185, 75%, 66%)
HSV	hsv(185, 56%, 91%)
CMYK	cmyk(56.2%, 5.2%, 0%, 8.6%)
CIE-LAB	lab(82.06, -30.02, -16.02)
CIE-LCH	lch(82.06, 34.03, 208.09°)
OKLab	oklab(83.39% -0.0982 -0.0443)
OKLCH	oklch(83.39% 0.108 204.3)
XYZ	xyz(46.0379, 60.4164, 86.3103)
Luminance	0.6042 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DDE9 #E97266

analogous

#66E9B3 #66DDE9 #669BE9

triadic

#66DDE9 #E966DD #DDE966

tetradic

#66DDE9 #B366E9 #E97266 #9BE966

square

#66DDE9 #B366E9 #E97266 #9BE966

split-complementary

#66DDE9 #E9669B #E9B366

monochromatic

#1BABBA #30D1E1 #66DDE9 #9CE9F1 #D1F5F8

Accessibility & contrast

On white

1.60

#66DDE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.08

#66DDE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DDE9

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DDE9	#FFFFFF	#000000	##000000
##66DDE9	1.00	1.60	13.08	13.08
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.08	21.00	1.00	1.00
##000000	13.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CED5EA

Deuteranopia (green-blind)

#B9C6EA

Tritanopia (blue-blind)

#00E5E0

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dde9;
/* rgb */ color: rgb(102, 221, 233);
/* oklch */ color: oklch(83.4% 0.108 204.3);

Tailwind

colors: {
  custom: {
    50: '#9de8f0',
    500: '#66dde9',
    950: '#000000',
  },
}

SCSS

$custom: #66dde9;
$custom-light: #9de8f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66dde9",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 233
  },
  "hsl": {
    "h": 185.496,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.8339,
    "c": 0.10775,
    "h": 204.3
  },
  "luminance": 0.60421
}

Semantic roles & 50–950 ramp

primary

#66DDE9

secondary

#B9463A

accent

#210ED7

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1616

muted

#808485

Preview Lab

Preview with #66DDE9

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

Preview Lab → · Contrast checker → · Palette generator →