#66D5CC#66D5CC

#66D5CC is a light, moderate teal. Relative luminance 0.548; OKLCH L 80.6% C 0.103 H 188.2°. Best body text is #000000 at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#66D5CC
RGB	rgb(102, 213, 204)
HSL	hsl(175, 57%, 62%)
HSV	hsv(175, 52%, 84%)
CMYK	cmyk(52.1%, 0%, 4.2%, 16.5%)
CIE-LAB	lab(78.91, -33.87, -5.26)
CIE-LCH	lch(78.91, 34.27, 188.82°)
OKLab	oklab(80.56% -0.1017 -0.0147)
OKLCH	oklch(80.56% 0.103 188.2)
XYZ	xyz(40.1682, 54.7692, 65.5697)
Luminance	0.5477 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D5CC #D5666F

analogous

#66D595 #66D5CC #66A7D5

triadic

#66D5CC #CC66D5 #D5CC66

tetradic

#66D5CC #9566D5 #D5666F #A7D566

square

#66D5CC #9566D5 #D5666F #A7D566

split-complementary

#66D5CC #D566A7 #D59566

monochromatic

#29978E #37C7BB #66D5CC #96E2DC #C6EFEC

Accessibility & contrast

On white

1.76

#66D5CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.95

#66D5CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D5CC

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D5CC	#FFFFFF	#000000	##000000
##66D5CC	1.00	1.76	11.95	11.95
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.95	21.00	1.00	1.00
##000000	11.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBCBCC

Deuteranopia (green-blind)

#B9BECD

Tritanopia (blue-blind)

#16DAD2

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66d5cc;
/* rgb */ color: rgb(102, 213, 204);
/* oklch */ color: oklch(80.6% 0.103 188.2);

Tailwind

colors: {
  custom: {
    50: '#9be2db',
    500: '#66d5cc',
    950: '#000000',
  },
}

SCSS

$custom: #66d5cc;
$custom-light: #9be2db;
$custom-dark: #000000;

JSON

{
  "hex": "#66d5cc",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 204
  },
  "hsl": {
    "h": 175.135,
    "s": 56.923,
    "l": 61.765
  },
  "oklch": {
    "l": 0.80562,
    "c": 0.10273,
    "h": 188.2
  },
  "luminance": 0.54773
}

Semantic roles & 50–950 ramp

primary

#66D5CC

secondary

#9C434A

accent

#212EC4

background

#FCFEFE

surface

#F5FCFB

border

#CFD5D4

text

#0F1515

muted

#808484

Preview Lab

Preview with #66D5CC

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

Preview Lab → · Contrast checker → · Palette generator →