#66A5CE#66A5CE

#66A5CE is a light, moderate cyan. Relative luminance 0.342; OKLCH L 69.5% C 0.089 H 238.4°. Best body text is #000000 at 7.84:1 contrast (WCAG AA passes).

Color values

HEX#66A5CE
RGBrgb(102, 165, 206)
HSLhsl(204, 51%, 60%)
HSVhsv(204, 50%, 81%)
CMYKcmyk(50.5%, 19.9%, 0%, 19.2%)
CIE-LABlab(65.11, -8.92, -27.16)
CIE-LCHlch(65.11, 28.58, 251.82°)
OKLaboklab(69.54% -0.0465 -0.0756)
OKLCHoklch(69.54% 0.089 238.4)
XYZxyz(30.0712, 34.1889, 63.3950)
Luminance0.3419 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66A5CE #CE8F66
analogous
#66CEC3 #66A5CE #6671CE
triadic
#66A5CE #CE66A5 #A5CE66
tetradic
#66A5CE #C366CE #CE8F66 #71CE66
square
#66A5CE #C366CE #CE8F66 #71CE66
split-complementary
#66A5CE #CE6671 #CEC366
monochromatic
#2D678D #3C89BB #66A5CE #94C0DD #C3DCEC

Accessibility & contrast

On white

2.68
#66A5CE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.84
#66A5CE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A5CE
7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66A5CE#FFFFFF#000000##000000
##66A5CE1.002.687.847.84
#FFFFFF2.681.0021.0021.00
#0000007.8421.001.001.00
##0000007.8421.001.001.00

Color blindness preview

Protanopia (red-blind)
#93A4D0
Deuteranopia (green-blind)
#8499CD
Tritanopia (blue-blind)
#2EAFB3
Achromatopsia (no color)
#9E9E9E

Design tokens & code

CSS
--color: #66a5ce;
/* rgb */ color: rgb(102, 165, 206);
/* oklch */ color: oklch(69.5% 0.089 238.4);
Tailwind
colors: {
  custom: {
    50: '#98bfdd',
    500: '#66a5ce',
    950: '#000000',
  },
}
SCSS
$custom: #66a5ce;
$custom-light: #98bfdd;
$custom-dark: #000000;
JSON
{
  "hex": "#66a5ce",
  "rgb": {
    "r": 102,
    "g": 165,
    "b": 206
  },
  "hsl": {
    "h": 203.654,
    "s": 51.485,
    "l": 60.392
  },
  "oklch": {
    "l": 0.69537,
    "c": 0.08874,
    "h": 238.4
  },
  "luminance": 0.34191
}

Semantic roles & 50–950 ramp

primary
#66A5CE
secondary
#DCC4B4
accent
#6327BF
background
#F9FBFD
surface
#F2F7FB
border
#CCD0D4
text
#0E1215
muted
#7E8183

Preview Lab

Preview with #66A5CE

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

Preview Lab → · Contrast checker → · Palette generator →

#66A5CE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva