#6699DC#6699DC

#6699DC is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.5% C 0.114 H 255.7°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX#6699DC
RGBrgb(102, 153, 220)
HSLhsl(214, 63%, 63%)
HSVhsv(214, 54%, 86%)
CMYKcmyk(53.6%, 30.5%, 0%, 13.7%)
CIE-LABlab(62.31, 2.05, -39.27)
CIE-LCHlch(62.31, 39.32, 272.99°)
OKLaboklab(67.53% -0.0282 -0.1105)
OKLCHoklch(67.53% 0.114 255.7)
XYZxyz(29.7845, 30.7722, 72.0664)
Luminance0.3078 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6699DC #DCA966
analogous
#66D4DC #6699DC #6E66DC
triadic
#6699DC #DC6699 #99DC66
tetradic
#6699DC #DC66D4 #DCA966 #66DC6E
square
#6699DC #DC66D4 #DCA966 #66DC6E
split-complementary
#6699DC #DC6E66 #D4DC66
monochromatic
#255BA2 #3478D1 #6699DC #98BAE7 #CADBF3

Accessibility & contrast

On white

2.94
#6699DC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.16
#6699DC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6699DC
7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6699DC#FFFFFF#000000##000000
##6699DC1.002.947.167.16
#FFFFFF2.941.0021.0021.00
#0000007.1621.001.001.00
##0000007.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#7E9DDF
Deuteranopia (green-blind)
#6F92DB
Tritanopia (blue-blind)
#20A8B1
Achromatopsia (no color)
#979797

Design tokens & code

CSS
--color: #6699dc;
/* rgb */ color: rgb(102, 153, 220);
/* oklch */ color: oklch(67.5% 0.114 255.7);
Tailwind
colors: {
  custom: {
    50: '#99b6e7',
    500: '#6699dc',
    950: '#000000',
  },
}
SCSS
$custom: #6699dc;
$custom-light: #99b6e7;
$custom-dark: #000000;
JSON
{
  "hex": "#6699dc",
  "rgb": {
    "r": 102,
    "g": 153,
    "b": 220
  },
  "hsl": {
    "h": 214.068,
    "s": 62.766,
    "l": 63.137
  },
  "oklch": {
    "l": 0.67527,
    "c": 0.11403,
    "h": 255.7
  },
  "luminance": 0.30775
}

Semantic roles & 50–950 ramp

primary
#6699DC
secondary
#E4D2BA
accent
#7F1BCB
background
#F9FBFE
surface
#F2F6FC
border
#CCD0D5
text
#0E1116
muted
#7E8084

Preview Lab

Preview with #6699DC

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

Preview Lab → · Contrast checker → · Palette generator →

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