#6699CC#6699CC

#6699CC is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.8% C 0.094 H 249.4°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX#6699CC
RGBrgb(102, 153, 204)
HSLhsl(210, 50%, 60%)
HSVhsv(210, 50%, 80%)
CMYKcmyk(50%, 25%, 0%, 20%)
CIE-LABlab(61.62, -2.82, -31.43)
CIE-LCHlch(61.62, 31.56, 264.87°)
OKLaboklab(66.76% -0.033 -0.0878)
OKLCHoklch(66.76% 0.094 249.4)
XYZxyz(27.7660, 29.9648, 61.4357)
Luminance0.2997 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6699CC #CC9966
analogous
#66CCCC #6699CC #6666CC
triadic
#6699CC #CC6699 #99CC66
tetradic
#6699CC #CC66CC #CC9966 #66CC66
square
#6699CC #CC66CC #CC9966 #66CC66
split-complementary
#6699CC #CC6666 #CCCC66
monochromatic
#2E5C8A #3D7AB8 #6699CC #94B8DB #C2D6EB

Accessibility & contrast

On white

3.00
#6699CC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.99
#6699CC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6699CC
6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6699CC#FFFFFF#000000##000000
##6699CC1.003.006.996.99
#FFFFFF3.001.0021.0021.00
#0000006.9921.001.001.00
##0000006.9921.001.001.00

Color blindness preview

Protanopia (red-blind)
#849BCE
Deuteranopia (green-blind)
#7790CB
Tritanopia (blue-blind)
#34A5AA
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #6699cc;
/* rgb */ color: rgb(102, 153, 204);
/* oklch */ color: oklch(66.8% 0.094 249.4);
Tailwind
colors: {
  custom: {
    50: '#97b6db',
    500: '#6699cc',
    950: '#000000',
  },
}
SCSS
$custom: #6699cc;
$custom-light: #97b6db;
$custom-dark: #000000;
JSON
{
  "hex": "#6699cc",
  "rgb": {
    "r": 102,
    "g": 153,
    "b": 204
  },
  "hsl": {
    "h": 210,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.66758,
    "c": 0.09386,
    "h": 249.4
  },
  "luminance": 0.29967
}

Semantic roles & 50–950 ramp

primary
#6699CC
secondary
#DBC7B3
accent
#944EDA
background
#F9FBFD
surface
#F2F6FB
border
#CCD0D4
text
#0E1115
muted
#7E8083

Preview Lab

Preview with #6699CC

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

Preview Lab → · Contrast checker → · Palette generator →

#6699CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva