#66ABF9#66ABF9

#66ABF9 is a light, vivid cyan. Relative luminance 0.388; OKLCH L 72.9% C 0.134 H 252.7°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX#66ABF9
RGBrgb(102, 171, 249)
HSLhsl(212, 92%, 69%)
HSVhsv(212, 59%, 98%)
CMYKcmyk(59%, 31.3%, 0%, 2.4%)
CIE-LABlab(68.60, 0.89, -45.34)
CIE-LCHlch(68.60, 45.35, 271.12°)
OKLaboklab(72.88% -0.0398 -0.128)
OKLCHoklch(72.88% 0.134 252.7)
XYZxyz(37.1351, 38.7868, 95.1338)
Luminance0.3879 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66ABF9 #F9B466
analogous
#66F4F9 #66ABF9 #6B66F9
triadic
#66ABF9 #F966AB #ABF966
tetradic
#66ABF9 #F966F4 #F9B466 #66F96B
square
#66ABF9 #F966F4 #F9B466 #66F96B
split-complementary
#66ABF9 #F96B66 #F4F966
monochromatic
#096CDC #2B8BF7 #66ABF9 #A1CBFB #DCECFE

Accessibility & contrast

On white

2.40
#66ABF9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.76
#66ABF9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ABF9
8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66ABF9#FFFFFF#000000##000000
##66ABF91.002.408.768.76
#FFFFFF2.401.0021.0021.00
#0000008.7621.001.001.00
##0000008.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#8AAFFC
Deuteranopia (green-blind)
#77A1F7
Tritanopia (blue-blind)
#00BDC7
Achromatopsia (no color)
#A7A7A7

Design tokens & code

CSS
--color: #66abf9;
/* rgb */ color: rgb(102, 171, 249);
/* oklch */ color: oklch(72.9% 0.134 252.7);
Tailwind
colors: {
  custom: {
    50: '#9cc3fb',
    500: '#66abf9',
    950: '#000000',
  },
}
SCSS
$custom: #66abf9;
$custom-light: #9cc3fb;
$custom-dark: #000000;
JSON
{
  "hex": "#66abf9",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 249
  },
  "hsl": {
    "h": 211.837,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.72876,
    "c": 0.13404,
    "h": 252.7
  },
  "luminance": 0.3879
}

Semantic roles & 50–950 ramp

primary
#66ABF9
secondary
#F3DFC8
accent
#7A00E6
background
#FAFBFF
surface
#F4F7FF
border
#CED0D7
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #66ABF9

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

Preview Lab → · Contrast checker → · Palette generator →

#66ABF9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva