#66CFEC#66CFEC

#66CFEC is a light, moderate cyan. Relative luminance 0.535; OKLCH L 80.3% C 0.105 H 218.4°. Best body text is #000000 at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#66CFEC
RGB	rgb(102, 207, 236)
HSL	hsl(193, 78%, 66%)
HSV	hsv(193, 57%, 93%)
CMYK	cmyk(56.8%, 12.3%, 0%, 7.5%)
CIE-LAB	lab(78.17, -22.29, -23.51)
CIE-LCH	lch(78.17, 32.40, 226.53°)
OKLab	oklab(80.3% -0.0822 -0.0652)
OKLCH	oklch(80.3% 0.105 218.4)
XYZ	xyz(42.9267, 53.5024, 87.4054)
Luminance	0.5351 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CFEC #EC8366

analogous

#66ECC6 #66CFEC #668CEC

triadic

#66CFEC #EC66CF #CFEC66

tetradic

#66CFEC #C666EC #EC8366 #8CEC66

square

#66CFEC #C666EC #EC8366 #8CEC66

split-complementary

#66CFEC #EC668C #ECC666

monochromatic

#189BC0 #30BEE5 #66CFEC #9CE0F3 #D3F1FA

Accessibility & contrast

On white

1.79

#66CFEC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.70

#66CFEC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CFEC

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CFEC	#FFFFFF	#000000	##000000
##66CFEC	1.00	1.79	11.70	11.70
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.70	21.00	1.00	1.00
##000000	11.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCCAEE

Deuteranopia (green-blind)

#A9BBEC

Tritanopia (blue-blind)

#00D9D8

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cfec;
/* rgb */ color: rgb(102, 207, 236);
/* oklch */ color: oklch(80.3% 0.105 218.4);

Tailwind

colors: {
  custom: {
    50: '#9cddf2',
    500: '#66cfec',
    950: '#000000',
  },
}

SCSS

$custom: #66cfec;
$custom-light: #9cddf2;
$custom-dark: #000000;

JSON

{
  "hex": "#66cfec",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 236
  },
  "hsl": {
    "h": 192.985,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.80297,
    "c": 0.10499,
    "h": 218.4
  },
  "luminance": 0.53507
}

Semantic roles & 50–950 ramp

primary

#66CFEC

secondary

#BE5538

accent

#380BDA

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66CFEC

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

Preview Lab → · Contrast checker → · Palette generator →