#66DAE9#66DAE9

#66DAE9 is a very light, moderate teal. Relative luminance 0.589; OKLCH L 82.7% C 0.106 H 206.7°. Best body text is #000000 at 12.77:1 contrast (WCAG AA passes).

Color values

HEX	#66DAE9
RGB	rgb(102, 218, 233)
HSL	hsl(187, 75%, 66%)
HSV	hsv(187, 56%, 91%)
CMYK	cmyk(56.2%, 6.4%, 0%, 8.6%)
CIE-LAB	lab(81.21, -28.57, -17.31)
CIE-LCH	lch(81.21, 33.40, 211.21°)
OKLab	oklab(82.7% -0.0951 -0.0479)
OKLCH	oklch(82.7% 0.106 206.7)
XYZ	xyz(45.2529, 58.8464, 86.0487)
Luminance	0.5885 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DAE9 #E97566

analogous

#66E9B6 #66DAE9 #6698E9

triadic

#66DAE9 #E966DA #DAE966

tetradic

#66DAE9 #B666E9 #E97566 #98E966

square

#66DAE9 #B666E9 #E97566 #98E966

split-complementary

#66DAE9 #E96698 #E9B666

monochromatic

#1BA8BA #30CDE1 #66DAE9 #9CE7F1 #D1F4F8

Accessibility & contrast

On white

1.64

#66DAE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.77

#66DAE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DAE9

12.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DAE9	#FFFFFF	#000000	##000000
##66DAE9	1.00	1.64	12.77	12.77
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.77	21.00	1.00	1.00
##000000	12.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAD2EA

Deuteranopia (green-blind)

#B6C3E9

Tritanopia (blue-blind)

#00E2DE

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #66dae9;
/* rgb */ color: rgb(102, 218, 233);
/* oklch */ color: oklch(82.7% 0.106 206.7);

Tailwind

colors: {
  custom: {
    50: '#9de5f0',
    500: '#66dae9',
    950: '#000000',
  },
}

SCSS

$custom: #66dae9;
$custom-light: #9de5f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66dae9",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 233
  },
  "hsl": {
    "h": 186.87,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.827,
    "c": 0.10644,
    "h": 206.7
  },
  "luminance": 0.58851
}

Semantic roles & 50–950 ramp

primary

#66DAE9

secondary

#B9483A

accent

#250ED7

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1616

muted

#808485

Preview Lab

Preview with #66DAE9

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

Preview Lab → · Contrast checker → · Palette generator →