#66C2EA#66C2EA

#66C2EA is a light, moderate cyan. Relative luminance 0.473; OKLCH L 77.3% C 0.105 H 228.7°. Best body text is #000000 at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#66C2EA
RGB	rgb(102, 194, 234)
HSL	hsl(198, 76%, 66%)
HSV	hsv(198, 56%, 92%)
CMYK	cmyk(56.4%, 17.1%, 0%, 8.2%)
CIE-LAB	lab(74.41, -16.20, -28.19)
CIE-LCH	lch(74.41, 32.51, 240.11°)
OKLab	oklab(77.27% -0.0691 -0.0785)
OKLCH	oklch(77.27% 0.105 228.7)
XYZ	xyz(39.6169, 47.3452, 84.8767)
Luminance	0.4735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C2EA #EA8E66

analogous

#66EAD0 #66C2EA #6680EA

triadic

#66C2EA #EA66C2 #C2EA66

tetradic

#66C2EA #D066EA #EA8E66 #80EA66

square

#66C2EA #D066EA #EA8E66 #80EA66

split-complementary

#66C2EA #EA6680 #EAD066

monochromatic

#1A8BBC #30ADE3 #66C2EA #9CD7F1 #D2EDF9

Accessibility & contrast

On white

2.01

#66C2EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.47

#66C2EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C2EA

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C2EA	#FFFFFF	#000000	##000000
##66C2EA	1.00	2.01	10.47	10.47
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.47	21.00	1.00	1.00
##000000	10.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBFEC

Deuteranopia (green-blind)

#9BB1E9

Tritanopia (blue-blind)

#00CDCF

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66c2ea;
/* rgb */ color: rgb(102, 194, 234);
/* oklch */ color: oklch(77.3% 0.105 228.7);

Tailwind

colors: {
  custom: {
    50: '#9bd4f0',
    500: '#66c2ea',
    950: '#000000',
  },
}

SCSS

$custom: #66c2ea;
$custom-light: #9bd4f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66c2ea",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 234
  },
  "hsl": {
    "h": 198.182,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.7727,
    "c": 0.10455,
    "h": 228.7
  },
  "luminance": 0.47349
}

Semantic roles & 50–950 ramp

primary

#66C2EA

secondary

#ECCDC0

accent

#4B0DD8

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #66C2EA

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

Preview Lab → · Contrast checker → · Palette generator →