#66C3F7#66C3F7

#66C3F7 is a light, moderate cyan. Relative luminance 0.486; OKLCH L 78.0% C 0.116 H 235.4°. Best body text is #000000 at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#66C3F7
RGB	rgb(102, 195, 247)
HSL	hsl(202, 90%, 68%)
HSV	hsv(202, 59%, 97%)
CMYK	cmyk(58.7%, 21.1%, 0%, 3.1%)
CIE-LAB	lab(75.18, -12.86, -34.00)
CIE-LCH	lch(75.18, 36.35, 249.29°)
OKLab	oklab(78.05% -0.0656 -0.0951)
OKLCH	oklch(78.05% 0.116 235.4)
XYZ	xyz(41.7767, 48.5664, 95.1503)
Luminance	0.4857 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C3F7 #F79A66

analogous

#66F7E2 #66C3F7 #667AF7

triadic

#66C3F7 #F766C3 #C3F766

tetradic

#66C3F7 #E266F7 #F79A66 #7AF766

square

#66C3F7 #E266F7 #F79A66 #7AF766

split-complementary

#66C3F7 #F7667A #F7E266

monochromatic

#0B8ED7 #2CACF4 #66C3F7 #A0DAFA #DAF1FD

Accessibility & contrast

On white

1.96

#66C3F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.71

#66C3F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C3F7

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C3F7	#FFFFFF	#000000	##000000
##66C3F7	1.00	1.96	10.71	10.71
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.71	21.00	1.00	1.00
##000000	10.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAC2FA

Deuteranopia (green-blind)

#96B3F6

Tritanopia (blue-blind)

#00D1D4

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #66c3f7;
/* rgb */ color: rgb(102, 195, 247);
/* oklch */ color: oklch(78.0% 0.116 235.4);

Tailwind

colors: {
  custom: {
    50: '#9dd5fa',
    500: '#66c3f7',
    950: '#000000',
  },
}

SCSS

$custom: #66c3f7;
$custom-light: #9dd5fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66c3f7",
  "rgb": {
    "r": 102,
    "g": 195,
    "b": 247
  },
  "hsl": {
    "h": 201.517,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.78045,
    "c": 0.11554,
    "h": 235.4
  },
  "luminance": 0.4857
}

Semantic roles & 50–950 ramp

primary

#66C3F7

secondary

#F2D6C7

accent

#5200E6

background

#FAFDFF

surface

#F4FAFF

border

#CED3D7

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #66C3F7

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

Preview Lab → · Contrast checker → · Palette generator →