#66CEEA#66CEEA

#66CEEA is a light, moderate cyan. Relative luminance 0.529; OKLCH L 80.0% C 0.104 H 217.9°. Best body text is #000000 at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#66CEEA
RGB	rgb(102, 206, 234)
HSL	hsl(193, 76%, 66%)
HSV	hsv(193, 56%, 92%)
CMYK	cmyk(56.4%, 12%, 0%, 8.2%)
CIE-LAB	lab(77.82, -22.36, -22.98)
CIE-LCH	lch(77.82, 32.06, 225.78°)
OKLab	oklab(79.99% -0.0819 -0.0637)
OKLCH	oklch(79.99% 0.104 217.9)
XYZ	xyz(42.3962, 52.9039, 85.8032)
Luminance	0.5291 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CEEA #EA8266

analogous

#66EAC4 #66CEEA #668CEA

triadic

#66CEEA #EA66CE #CEEA66

tetradic

#66CEEA #C466EA #EA8266 #8CEA66

square

#66CEEA #C466EA #EA8266 #8CEA66

split-complementary

#66CEEA #EA668C #EAC466

monochromatic

#1A99BC #30BDE3 #66CEEA #9CDFF1 #D2F0F9

Accessibility & contrast

On white

1.81

#66CEEA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.58

#66CEEA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CEEA

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CEEA	#FFFFFF	#000000	##000000
##66CEEA	1.00	1.81	11.58	11.58
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.58	21.00	1.00	1.00
##000000	11.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCC9EC

Deuteranopia (green-blind)

#A8BAEA

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66ceea;
/* rgb */ color: rgb(102, 206, 234);
/* oklch */ color: oklch(80.0% 0.104 217.9);

Tailwind

colors: {
  custom: {
    50: '#9cddf0',
    500: '#66ceea',
    950: '#000000',
  },
}

SCSS

$custom: #66ceea;
$custom-light: #9cddf0;
$custom-dark: #000000;

JSON

{
  "hex": "#66ceea",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 234
  },
  "hsl": {
    "h": 192.727,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.79992,
    "c": 0.10381,
    "h": 217.9
  },
  "luminance": 0.52908
}

Semantic roles & 50–950 ramp

primary

#66CEEA

secondary

#BB5539

accent

#380DD8

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66CEEA

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

Preview Lab → · Contrast checker → · Palette generator →