#556ABC#556ABC

#556ABC is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.7% C 0.130 H 270.8°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX#556ABC
RGBrgb(85, 106, 188)
HSLhsl(228, 43%, 54%)
HSVhsv(228, 55%, 74%)
CMYKcmyk(54.8%, 43.6%, 0%, 26.3%)
CIE-LABlab(46.80, 16.30, -45.69)
CIE-LCHlch(46.80, 48.51, 289.63°)
OKLaboklab(54.73% 0.0018 -0.1299)
OKLCHoklch(54.73% 0.13 270.8)
XYZxyz(17.9745, 15.8689, 49.6830)
Luminance0.1587 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#556ABC #BCA755
analogous
#559DBC #556ABC #7355BC
triadic
#556ABC #BC556A #6ABC55
tetradic
#556ABC #BC559D #BCA755 #55BC73
square
#556ABC #BC559D #BCA755 #55BC73
split-complementary
#556ABC #BC7355 #9DBC55
monochromatic
#2B386C #3C4F98 #556ABC #8190CD #ADB7DF

Accessibility & contrast

On white

5.03
#556ABC on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.17
#556ABC on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556ABC
5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##556ABC#FFFFFF#000000##FFFFFF
##556ABC1.005.034.175.03
#FFFFFF5.031.0021.001.00
#0000004.1721.001.0021.00
##FFFFFF5.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4774BF
Deuteranopia (green-blind)
#3A6BBA
Tritanopia (blue-blind)
#1E7C8A
Achromatopsia (no color)
#6F6F6F

Design tokens & code

CSS
--color: #556abc;
/* rgb */ color: rgb(85, 106, 188);
/* oklch */ color: oklch(54.7% 0.130 270.8);
Tailwind
colors: {
  custom: {
    50: '#8c94d0',
    500: '#556abc',
    950: '#000000',
  },
}
SCSS
$custom: #556abc;
$custom-light: #8c94d0;
$custom-dark: #000000;
JSON
{
  "hex": "#556abc",
  "rgb": {
    "r": 85,
    "g": 106,
    "b": 188
  },
  "hsl": {
    "h": 227.767,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.54734,
    "c": 0.12991,
    "h": 270.8
  },
  "luminance": 0.1587
}

Semantic roles & 50–950 ramp

primary
#556ABC
secondary
#CCC3A0
accent
#B955D3
background
#F9F9FC
surface
#F1F1F9
border
#CBCBD2
text
#0D0D14
muted
#7E7E82

Preview Lab

Preview with #556ABC

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

Preview Lab → · Contrast checker → · Palette generator →

#556ABC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva