#66D4E4#66D4E4

#66D4E4 is a light, moderate teal. Relative luminance 0.555; OKLCH L 81.1% C 0.103 H 208.0°. Best body text is #000000 at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#66D4E4
RGB	rgb(102, 212, 228)
HSL	hsl(188, 70%, 65%)
HSV	hsv(188, 55%, 89%)
CMYK	cmyk(55.3%, 7%, 0%, 10.6%)
CIE-LAB	lab(79.33, -27.02, -17.47)
CIE-LCH	lch(79.33, 32.18, 212.88°)
OKLab	oklab(81.14% -0.0907 -0.0483)
OKLCH	oklch(81.14% 0.103 208)
XYZ	xyz(43.0209, 55.5091, 81.8309)
Luminance	0.5551 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D4E4 #E47666

analogous

#66E4B5 #66D4E4 #6695E4

triadic

#66D4E4 #E466D4 #D4E466

tetradic

#66D4E4 #B566E4 #E47666 #95E466

square

#66D4E4 #B566E4 #E47666 #95E466

split-complementary

#66D4E4 #E46695 #E4B566

monochromatic

#1F9EB0 #32C5DB #66D4E4 #9AE3ED #CEF1F6

Accessibility & contrast

On white

1.74

#66D4E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.10

#66D4E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D4E4

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D4E4	#FFFFFF	#000000	##000000
##66D4E4	1.00	1.74	12.10	12.10
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.10	21.00	1.00	1.00
##000000	12.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CDE5

Deuteranopia (green-blind)

#B1BEE4

Tritanopia (blue-blind)

#00DCD9

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #66d4e4;
/* rgb */ color: rgb(102, 212, 228);
/* oklch */ color: oklch(81.1% 0.103 208.0);

Tailwind

colors: {
  custom: {
    50: '#9ce1ec',
    500: '#66d4e4',
    950: '#000000',
  },
}

SCSS

$custom: #66d4e4;
$custom-light: #9ce1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#66d4e4",
  "rgb": {
    "r": 102,
    "g": 212,
    "b": 228
  },
  "hsl": {
    "h": 187.619,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.81142,
    "c": 0.10275,
    "h": 208
  },
  "luminance": 0.55513
}

Semantic roles & 50–950 ramp

primary

#66D4E4

secondary

#B14C3D

accent

#2C14D2

background

#FCFEFE

surface

#F6FCFD

border

#D0D5D5

text

#0F1516

muted

#808484

Preview Lab

Preview with #66D4E4

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

Preview Lab → · Contrast checker → · Palette generator →