#66C7CC#66C7CC

#66C7CC is a light, moderate teal. Relative luminance 0.480; OKLCH L 77.3% C 0.092 H 199.9°. Best body text is #000000 at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#66C7CC
RGB	rgb(102, 199, 204)
HSL	hsl(183, 50%, 60%)
HSV	hsv(183, 50%, 80%)
CMYK	cmyk(50%, 2.5%, 0%, 20%)
CIE-LAB	lab(74.84, -27.15, -11.30)
CIE-LCH	lch(74.84, 29.40, 202.59°)
OKLab	oklab(77.28% -0.0862 -0.0312)
OKLCH	oklch(77.28% 0.092 199.9)
XYZ	xyz(36.7976, 48.0280, 64.4462)
Luminance	0.4803 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C7CC #CC6B66

analogous

#66CC9E #66C7CC #6694CC

triadic

#66C7CC #CC66C7 #C7CC66

tetradic

#66C7CC #9E66CC #CC6B66 #94CC66

square

#66C7CC #9E66CC #CC6B66 #94CC66

split-complementary

#66C7CC #CC6694 #CC9E66

monochromatic

#2E858A #3DB2B8 #66C7CC #94D8DB #C2E9EB

Accessibility & contrast

On white

1.98

#66C7CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.61

#66C7CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C7CC

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C7CC	#FFFFFF	#000000	##000000
##66C7CC	1.00	1.98	10.61	10.61
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.61	21.00	1.00	1.00
##000000	10.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC0CD

Deuteranopia (green-blind)

#AAB3CD

Tritanopia (blue-blind)

#21CDC8

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66c7cc;
/* rgb */ color: rgb(102, 199, 204);
/* oklch */ color: oklch(77.3% 0.092 199.9);

Tailwind

colors: {
  custom: {
    50: '#99d8db',
    500: '#66c7cc',
    950: '#000000',
  },
}

SCSS

$custom: #66c7cc;
$custom-light: #99d8db;
$custom-dark: #000000;

JSON

{
  "hex": "#66c7cc",
  "rgb": {
    "r": 102,
    "g": 199,
    "b": 204
  },
  "hsl": {
    "h": 182.941,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.77284,
    "c": 0.09167,
    "h": 199.9
  },
  "luminance": 0.48031
}

Semantic roles & 50–950 ramp

primary

#66C7CC

secondary

#DBB5B3

accent

#554EDA

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0F1415

muted

#7E8383

Preview Lab

Preview with #66C7CC

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

Preview Lab → · Contrast checker → · Palette generator →