#66B8F7#66B8F7

#66B8F7 is a light, vivid cyan. Relative luminance 0.438; OKLCH L 75.6% C 0.122 H 243.6°. Best body text is #000000 at 9.76:1 contrast (WCAG AA passes).

Color values

HEX#66B8F7
RGBrgb(102, 184, 247)
HSLhsl(206, 90%, 68%)
HSVhsv(206, 59%, 97%)
CMYKcmyk(58.7%, 25.5%, 0%, 3.1%)
CIE-LABlab(72.11, -6.95, -38.77)
CIE-LCHlch(72.11, 39.39, 259.84°)
OKLaboklab(75.61% -0.0541 -0.1089)
OKLCHoklch(75.61% 0.122 243.6)
XYZxyz(39.4023, 43.8175, 94.3588)
Luminance0.4382 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B8F7 #F7A566
analogous
#66F7ED #66B8F7 #666FF7
triadic
#66B8F7 #F766B8 #B8F766
tetradic
#66B8F7 #ED66F7 #F7A566 #6FF766
square
#66B8F7 #ED66F7 #F7A566 #6FF766
split-complementary
#66B8F7 #F7666F #F7ED66
monochromatic
#0B7FD7 #2C9DF4 #66B8F7 #A0D3FA #DAEEFD

Accessibility & contrast

On white

2.15
#66B8F7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.76
#66B8F7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B8F7
9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B8F7#FFFFFF#000000##000000
##66B8F71.002.159.769.76
#FFFFFF2.151.0021.0021.00
#0000009.7621.001.001.00
##0000009.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#9CB9FA
Deuteranopia (green-blind)
#89AAF6
Tritanopia (blue-blind)
#00C7CE
Achromatopsia (no color)
#B1B1B1

Design tokens & code

CSS
--color: #66b8f7;
/* rgb */ color: rgb(102, 184, 247);
/* oklch */ color: oklch(75.6% 0.122 243.6);
Tailwind
colors: {
  custom: {
    50: '#9ccdfa',
    500: '#66b8f7',
    950: '#000000',
  },
}
SCSS
$custom: #66b8f7;
$custom-light: #9ccdfa;
$custom-dark: #000000;
JSON
{
  "hex": "#66b8f7",
  "rgb": {
    "r": 102,
    "g": 184,
    "b": 247
  },
  "hsl": {
    "h": 206.069,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.7561,
    "c": 0.12154,
    "h": 243.6
  },
  "luminance": 0.43821
}

Semantic roles & 50–950 ramp

primary
#66B8F7
secondary
#F2DAC7
accent
#6400E6
background
#FAFCFF
surface
#F4F8FF
border
#CED1D7
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #66B8F7

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

Preview Lab → · Contrast checker → · Palette generator →

#66B8F7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva