#66AAFA#66AAFA

#66AAFA is a light, vivid cyan. Relative luminance 0.385; OKLCH L 72.7% C 0.136 H 253.6°. Best body text is #000000 at 8.70:1 contrast (WCAG AA passes).

Color values

HEX#66AAFA
RGBrgb(102, 170, 250)
HSLhsl(212, 94%, 69%)
HSVhsv(212, 59%, 98%)
CMYKcmyk(59.2%, 32%, 0%, 2%)
CIE-LABlab(68.37, 1.77, -46.25)
CIE-LCHlch(68.37, 46.28, 272.19°)
OKLaboklab(72.71% -0.0385 -0.1306)
OKLCHoklch(72.71% 0.136 253.6)
XYZxyz(37.1033, 38.4730, 95.8947)
Luminance0.3848 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66AAFA #FAB666
analogous
#66F4FA #66AAFA #6C66FA
triadic
#66AAFA #FA66AA #AAFA66
tetradic
#66AAFA #FA66F4 #FAB666 #66FA6C
square
#66AAFA #FA66F4 #FAB666 #66FA6C
split-complementary
#66AAFA #FA6C66 #F4FA66
monochromatic
#076ADE #2B89F8 #66AAFA #A1CBFC #DDECFE

Accessibility & contrast

On white

2.42
#66AAFA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.70
#66AAFA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AAFA
8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66AAFA#FFFFFF#000000##000000
##66AAFA1.002.428.708.70
#FFFFFF2.421.0021.0021.00
#0000008.7021.001.001.00
##0000008.7021.001.001.00

Color blindness preview

Protanopia (red-blind)
#88AFFD
Deuteranopia (green-blind)
#75A0F8
Tritanopia (blue-blind)
#00BCC7
Achromatopsia (no color)
#A7A7A7

Design tokens & code

CSS
--color: #66aafa;
/* rgb */ color: rgb(102, 170, 250);
/* oklch */ color: oklch(72.7% 0.136 253.6);
Tailwind
colors: {
  custom: {
    50: '#9dc3fc',
    500: '#66aafa',
    950: '#000000',
  },
}
SCSS
$custom: #66aafa;
$custom-light: #9dc3fc;
$custom-dark: #000000;
JSON
{
  "hex": "#66aafa",
  "rgb": {
    "r": 102,
    "g": 170,
    "b": 250
  },
  "hsl": {
    "h": 212.432,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.72712,
    "c": 0.13618,
    "h": 253.6
  },
  "luminance": 0.38476
}

Semantic roles & 50–950 ramp

primary
#66AAFA
secondary
#F4E0C8
accent
#7C00E6
background
#FAFBFF
surface
#F4F7FF
border
#CED0D7
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #66AAFA

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

Preview Lab → · Contrast checker → · Palette generator →

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