#66C2EF#66C2EF

#66C2EF is a light, moderate cyan. Relative luminance 0.476; OKLCH L 77.5% C 0.109 H 231.7°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#66C2EF
RGB	rgb(102, 194, 239)
HSL	hsl(200, 81%, 67%)
HSV	hsv(200, 57%, 94%)
CMYK	cmyk(57.3%, 18.8%, 0%, 6.3%)
CIE-LAB	lab(74.60, -14.73, -30.60)
CIE-LCH	lch(74.60, 33.96, 244.30°)
OKLab	oklab(77.48% -0.0673 -0.0854)
OKLCH	oklch(77.48% 0.109 231.7)
XYZ	xyz(40.3453, 47.6366, 88.7132)
Luminance	0.4764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C2EF #EF9366

analogous

#66EFD8 #66C2EF #667EEF

triadic

#66C2EF #EF66C2 #C2EF66

tetradic

#66C2EF #D866EF #EF9366 #7EEF66

square

#66C2EF #D866EF #EF9366 #7EEF66

split-complementary

#66C2EF #EF667E #EFD866

monochromatic

#158CC6 #2FACE9 #66C2EF #9DD8F5 #D5EEFB

Accessibility & contrast

On white

1.99

#66C2EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.53

#66C2EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C2EF

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C2EF	#FFFFFF	#000000	##000000
##66C2EF	1.00	1.99	10.53	10.53
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.53	21.00	1.00	1.00
##000000	10.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACC0F1

Deuteranopia (green-blind)

#99B1EE

Tritanopia (blue-blind)

#00CED1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66c2ef;
/* rgb */ color: rgb(102, 194, 239);
/* oklch */ color: oklch(77.5% 0.109 231.7);

Tailwind

colors: {
  custom: {
    50: '#9cd4f4',
    500: '#66c2ef',
    950: '#000000',
  },
}

SCSS

$custom: #66c2ef;
$custom-light: #9cd4f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66c2ef",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 239
  },
  "hsl": {
    "h": 199.708,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.77479,
    "c": 0.10871,
    "h": 231.7
  },
  "luminance": 0.4764
}

Semantic roles & 50–950 ramp

primary

#66C2EF

secondary

#EED1C2

accent

#4E08DD

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #66C2EF

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

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