#66D0F6#66D0F6

#66D0F6 is a light, moderate cyan. Relative luminance 0.546; OKLCH L 80.9% C 0.111 H 224.3°. Best body text is #000000 at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#66D0F6
RGB	rgb(102, 208, 246)
HSL	hsl(196, 89%, 68%)
HSV	hsv(196, 59%, 96%)
CMYK	cmyk(58.5%, 15.4%, 0%, 3.5%)
CIE-LAB	lab(78.80, -19.91, -27.89)
CIE-LCH	lch(78.80, 34.27, 234.49°)
OKLab	oklab(80.92% -0.0796 -0.0776)
OKLCH	oklch(80.92% 0.111 224.3)
XYZ	xyz(44.6634, 54.5860, 95.3533)
Luminance	0.5459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D0F6 #F68C66

analogous

#66F6D4 #66D0F6 #6688F6

triadic

#66D0F6 #F666D0 #D0F666

tetradic

#66D0F6 #D466F6 #F68C66 #88F666

square

#66D0F6 #D466F6 #F68C66 #88F666

split-complementary

#66D0F6 #F66688 #F6D466

monochromatic

#0DA0D5 #2CBEF3 #66D0F6 #A0E2F9 #DAF4FD

Accessibility & contrast

On white

1.76

#66D0F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.92

#66D0F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D0F6

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D0F6	#FFFFFF	#000000	##000000
##66D0F6	1.00	1.76	11.92	11.92
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.92	21.00	1.00	1.00
##000000	11.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBCCF8

Deuteranopia (green-blind)

#A6BCF6

Tritanopia (blue-blind)

#00DCDC

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66d0f6;
/* rgb */ color: rgb(102, 208, 246);
/* oklch */ color: oklch(80.9% 0.111 224.3);

Tailwind

colors: {
  custom: {
    50: '#9ddef9',
    500: '#66d0f6',
    950: '#000000',
  },
}

SCSS

$custom: #66d0f6;
$custom-light: #9ddef9;
$custom-dark: #000000;

JSON

{
  "hex": "#66d0f6",
  "rgb": {
    "r": 102,
    "g": 208,
    "b": 246
  },
  "hsl": {
    "h": 195.833,
    "s": 88.889,
    "l": 68.235
  },
  "oklch": {
    "l": 0.80917,
    "c": 0.11119,
    "h": 224.3
  },
  "luminance": 0.5459
}

Semantic roles & 50–950 ramp

primary

#66D0F6

secondary

#CF5B31

accent

#3D00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66D0F6

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

Preview Lab → · Contrast checker → · Palette generator →