#66D4E5#66D4E5

#66D4E5 is a light, moderate teal. Relative luminance 0.556; OKLCH L 81.2% C 0.103 H 208.8°. Best body text is #000000 at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#66D4E5
RGB	rgb(102, 212, 229)
HSL	hsl(188, 71%, 65%)
HSV	hsv(188, 55%, 90%)
CMYK	cmyk(55.5%, 7.4%, 0%, 10.2%)
CIE-LAB	lab(79.37, -26.75, -17.96)
CIE-LCH	lch(79.37, 32.21, 213.88°)
OKLab	oklab(81.18% -0.0903 -0.0497)
OKLCH	oklch(81.18% 0.103 208.8)
XYZ	xyz(43.1601, 55.5648, 82.5641)
Luminance	0.5557 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D4E5 #E57766

analogous

#66E5B6 #66D4E5 #6695E5

triadic

#66D4E5 #E566D4 #D4E566

tetradic

#66D4E5 #B666E5 #E57766 #95E566

square

#66D4E5 #B666E5 #E57766 #95E566

split-complementary

#66D4E5 #E56695 #E5B666

monochromatic

#1E9EB2 #32C5DC #66D4E5 #9AE3EE #CFF1F7

Accessibility & contrast

On white

1.73

#66D4E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.11

#66D4E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D4E5

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D4E5	#FFFFFF	#000000	##000000
##66D4E5	1.00	1.73	12.11	12.11
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.11	21.00	1.00	1.00
##000000	12.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CDE6

Deuteranopia (green-blind)

#B0BEE5

Tritanopia (blue-blind)

#00DCD9

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #66d4e5;
/* rgb */ color: rgb(102, 212, 229);
/* oklch */ color: oklch(81.2% 0.103 208.8);

Tailwind

colors: {
  custom: {
    50: '#9ce1ed',
    500: '#66d4e5',
    950: '#000000',
  },
}

SCSS

$custom: #66d4e5;
$custom-light: #9ce1ed;
$custom-dark: #000000;

JSON

{
  "hex": "#66d4e5",
  "rgb": {
    "r": 102,
    "g": 212,
    "b": 229
  },
  "hsl": {
    "h": 188.031,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.81178,
    "c": 0.10304,
    "h": 208.8
  },
  "luminance": 0.55569
}

Semantic roles & 50–950 ramp

primary

#66D4E5

secondary

#B34C3C

accent

#2C13D3

background

#FCFEFE

surface

#F6FCFD

border

#D0D5D5

text

#0F1516

muted

#808484

Preview Lab

Preview with #66D4E5

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

Preview Lab → · Contrast checker → · Palette generator →