#66CCFB#66CCFB

#66CCFB is a light, moderate cyan. Relative luminance 0.530; OKLCH L 80.2% C 0.116 H 230.5°. Best body text is #000000 at 11.60:1 contrast (WCAG AA passes).

Color values

HEX#66CCFB
RGBrgb(102, 204, 251)
HSLhsl(199, 95%, 69%)
HSVhsv(199, 59%, 98%)
CMYKcmyk(59.4%, 18.7%, 0%, 1.6%)
CIE-LABlab(77.86, -16.37, -32.02)
CIE-LCHlch(77.86, 35.96, 242.91°)
OKLaboklab(80.22% -0.0736 -0.0894)
OKLCHoklch(80.22% 0.116 230.5)
XYZxyz(44.4782, 52.9712, 99.1286)
Luminance0.5298 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CCFB #FB9566
analogous
#66FBDF #66CCFB #6682FB
triadic
#66CCFB #FB66CC #CCFB66
tetradic
#66CCFB #DF66FB #FB9566 #82FB66
square
#66CCFB #DF66FB #FB9566 #82FB66
split-complementary
#66CCFB #FB6682 #FBDF66
monochromatic
#069CE1 #2AB8F9 #66CCFB #A2E0FD #DDF4FE

Accessibility & contrast

On white

1.81
#66CCFB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.60
#66CCFB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CCFB
11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CCFB#FFFFFF#000000##000000
##66CCFB1.001.8111.6011.60
#FFFFFF1.811.0021.0021.00
#00000011.6021.001.001.00
##00000011.6021.001.001.00

Color blindness preview

Protanopia (red-blind)
#B4C9FD
Deuteranopia (green-blind)
#9FBAFA
Tritanopia (blue-blind)
#00D9DB
Achromatopsia (no color)
#C0C0C0

Design tokens & code

CSS
--color: #66ccfb;
/* rgb */ color: rgb(102, 204, 251);
/* oklch */ color: oklch(80.2% 0.116 230.5);
Tailwind
colors: {
  custom: {
    50: '#9edbfc',
    500: '#66ccfb',
    950: '#000000',
  },
}
SCSS
$custom: #66ccfb;
$custom-light: #9edbfc;
$custom-dark: #000000;
JSON
{
  "hex": "#66ccfb",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 251
  },
  "hsl": {
    "h": 198.926,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.80224,
    "c": 0.11581,
    "h": 230.5
  },
  "luminance": 0.52976
}

Semantic roles & 50–950 ramp

primary
#66CCFB
secondary
#D56430
accent
#4800E6
background
#FCFEFF
surface
#F6FBFF
border
#D0D4D7
text
#0F1517
muted
#808485

Preview Lab

Preview with #66CCFB

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

Preview Lab → · Contrast checker → · Palette generator →

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