#668FBB#668FBB

#668FBB is a light, moderate cyan. Relative luminance 0.261; OKLCH L 63.7% C 0.081 H 250.9°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX#668FBB
RGBrgb(102, 143, 187)
HSLhsl(211, 38%, 57%)
HSVhsv(211, 45%, 73%)
CMYKcmyk(45.5%, 23.5%, 0%, 26.7%)
CIE-LABlab(58.09, -2.15, -27.33)
CIE-LCHlch(58.09, 27.42, 265.50°)
OKLaboklab(63.75% -0.0264 -0.0761)
OKLCHoklch(63.75% 0.081 250.9)
XYZxyz(24.2686, 26.0560, 50.7546)
Luminance0.2606 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668FBB #BB9266
analogous
#66BABB #668FBB #6866BB
triadic
#668FBB #BB668F #8FBB66
tetradic
#668FBB #BB66BA #BB9266 #66BB68
square
#668FBB #BB66BA #BB9266 #66BB68
split-complementary
#668FBB #BB6866 #BABB66
monochromatic
#335273 #46709E #668FBB #90AECE #BBCDE1

Accessibility & contrast

On white

3.38
#668FBB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.21
#668FBB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FBB
6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668FBB#FFFFFF#000000##000000
##668FBB1.003.386.216.21
#FFFFFF3.381.0021.0021.00
#0000006.2121.001.001.00
##0000006.2121.001.001.00

Color blindness preview

Protanopia (red-blind)
#7E90BD
Deuteranopia (green-blind)
#7388BA
Tritanopia (blue-blind)
#43999E
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #668fbb;
/* rgb */ color: rgb(102, 143, 187);
/* oklch */ color: oklch(63.7% 0.081 250.9);
Tailwind
colors: {
  custom: {
    50: '#96afcf',
    500: '#668fbb',
    950: '#000000',
  },
}
SCSS
$custom: #668fbb;
$custom-light: #96afcf;
$custom-dark: #000000;
JSON
{
  "hex": "#668fbb",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 187
  },
  "hsl": {
    "h": 211.059,
    "s": 38.462,
    "l": 56.667
  },
  "oklch": {
    "l": 0.63748,
    "c": 0.08055,
    "h": 250.9
  },
  "luminance": 0.26058
}

Semantic roles & 50–950 ramp

primary
#668FBB
secondary
#D0BFAD
accent
#9659CE
background
#F9FAFC
surface
#F2F4F9
border
#CCCED2
text
#0E1014
muted
#7E7F82

Preview Lab

Preview with #668FBB

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

Preview Lab → · Contrast checker → · Palette generator →

#668FBB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva