#66D9EA#66D9EA

#66D9EA is a very light, moderate teal. Relative luminance 0.584; OKLCH L 82.5% C 0.106 H 208.3°. Best body text is #000000 at 12.68:1 contrast (WCAG AA passes).

Color values

HEX	#66D9EA
RGB	rgb(102, 217, 234)
HSL	hsl(188, 76%, 66%)
HSV	hsv(188, 56%, 92%)
CMYK	cmyk(56.4%, 7.3%, 0%, 8.2%)
CIE-LAB	lab(80.95, -27.81, -18.23)
CIE-LCH	lch(80.95, 33.25, 213.24°)
OKLab	oklab(82.51% -0.0936 -0.0504)
OKLCH	oklch(82.51% 0.106 208.3)
XYZ	xyz(45.1376, 58.3866, 86.7170)
Luminance	0.5839 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D9EA #EA7766

analogous

#66EAB9 #66D9EA #6697EA

triadic

#66D9EA #EA66D9 #D9EA66

tetradic

#66D9EA #B966EA #EA7766 #97EA66

square

#66D9EA #B966EA #EA7766 #97EA66

split-complementary

#66D9EA #EA6697 #EAB966

monochromatic

#1AA7BC #30CCE3 #66D9EA #9CE6F1 #D2F4F9

Accessibility & contrast

On white

1.66

#66D9EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.68

#66D9EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D9EA

12.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D9EA	#FFFFFF	#000000	##000000
##66D9EA	1.00	1.66	12.68	12.68
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.68	21.00	1.00	1.00
##000000	12.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9D2EB

Deuteranopia (green-blind)

#B4C3EA

Tritanopia (blue-blind)

#00E2DE

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #66d9ea;
/* rgb */ color: rgb(102, 217, 234);
/* oklch */ color: oklch(82.5% 0.106 208.3);

Tailwind

colors: {
  custom: {
    50: '#9de5f0',
    500: '#66d9ea',
    950: '#000000',
  },
}

SCSS

$custom: #66d9ea;
$custom-light: #9de5f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66d9ea",
  "rgb": {
    "r": 102,
    "g": 217,
    "b": 234
  },
  "hsl": {
    "h": 187.727,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.82507,
    "c": 0.10633,
    "h": 208.3
  },
  "luminance": 0.58391
}

Semantic roles & 50–950 ramp

primary

#66D9EA

secondary

#BB4A39

accent

#280DD8

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66D9EA

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

Preview Lab → · Contrast checker → · Palette generator →