#66D0F7#66D0F7

#66D0F7 is a light, moderate cyan. Relative luminance 0.547; OKLCH L 81.0% C 0.112 H 224.9°. Best body text is #000000 at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#66D0F7
RGB	rgb(102, 208, 247)
HSL	hsl(196, 90%, 68%)
HSV	hsv(196, 59%, 97%)
CMYK	cmyk(58.7%, 15.8%, 0%, 3.1%)
CIE-LAB	lab(78.84, -19.61, -28.37)
CIE-LCH	lch(78.84, 34.49, 235.35°)
OKLab	oklab(80.96% -0.0792 -0.079)
OKLCH	oklch(80.96% 0.112 224.9)
XYZ	xyz(44.8173, 54.6476, 96.1638)
Luminance	0.5465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D0F7 #F78D66

analogous

#66F7D5 #66D0F7 #6687F7

triadic

#66D0F7 #F766D0 #D0F766

tetradic

#66D0F7 #D566F7 #F78D66 #87F766

square

#66D0F7 #D566F7 #F78D66 #87F766

split-complementary

#66D0F7 #F76687 #F7D566

monochromatic

#0BA0D7 #2CBEF4 #66D0F7 #A0E2FA #DAF4FD

Accessibility & contrast

On white

1.76

#66D0F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.93

#66D0F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D0F7

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D0F7	#FFFFFF	#000000	##000000
##66D0F7	1.00	1.76	11.93	11.93
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.93	21.00	1.00	1.00
##000000	11.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BACCF9

Deuteranopia (green-blind)

#A6BCF7

Tritanopia (blue-blind)

#00DCDD

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66d0f7;
/* rgb */ color: rgb(102, 208, 247);
/* oklch */ color: oklch(81.0% 0.112 224.9);

Tailwind

colors: {
  custom: {
    50: '#9ddefa',
    500: '#66d0f7',
    950: '#000000',
  },
}

SCSS

$custom: #66d0f7;
$custom-light: #9ddefa;
$custom-dark: #000000;

JSON

{
  "hex": "#66d0f7",
  "rgb": {
    "r": 102,
    "g": 208,
    "b": 247
  },
  "hsl": {
    "h": 196.138,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.80957,
    "c": 0.11189,
    "h": 224.9
  },
  "luminance": 0.54652
}

Semantic roles & 50–950 ramp

primary

#66D0F7

secondary

#D05C31

accent

#3E00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66D0F7

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

Preview Lab → · Contrast checker → · Palette generator →