#556DCA#556DCA

#556DCA is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.2% C 0.146 H 270.3°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX#556DCA
RGBrgb(85, 109, 202)
HSLhsl(228, 52%, 56%)
HSVhsv(228, 58%, 79%)
CMYKcmyk(57.9%, 46%, 0%, 20.8%)
CIE-LABlab(48.42, 19.07, -51.16)
CIE-LCHlch(48.42, 54.60, 290.44°)
OKLaboklab(56.24% 0.0007 -0.1459)
OKLCHoklch(56.24% 0.146 270.3)
XYZxyz(19.8721, 17.1313, 58.1251)
Luminance0.1713 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#556DCA #CAB255
analogous
#55A8CA #556DCA #7855CA
triadic
#556DCA #CA556D #6DCA55
tetradic
#556DCA #CA55A8 #CAB255 #55CA78
square
#556DCA #CA55A8 #CAB255 #55CA78
split-complementary
#556DCA #CA7855 #A8CA55
monochromatic
#27397D #364EAC #556DCA #8495D9 #B2BDE7

Accessibility & contrast

On white

4.74
#556DCA on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.43
#556DCA on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DCA
4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##556DCA#FFFFFF#000000##FFFFFF
##556DCA1.004.744.434.74
#FFFFFF4.741.0021.001.00
#0000004.4321.001.0021.00
##FFFFFF4.741.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4278CD
Deuteranopia (green-blind)
#316EC8
Tritanopia (blue-blind)
#008292
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #556dca;
/* rgb */ color: rgb(85, 109, 202);
/* oklch */ color: oklch(56.2% 0.146 270.3);
Tailwind
colors: {
  custom: {
    50: '#8e96db',
    500: '#556dca',
    950: '#000000',
  },
}
SCSS
$custom: #556dca;
$custom-light: #8e96db;
$custom-dark: #000000;
JSON
{
  "hex": "#556dca",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 202
  },
  "hsl": {
    "h": 227.692,
    "s": 52.466,
    "l": 56.275
  },
  "oklch": {
    "l": 0.56237,
    "c": 0.14592,
    "h": 270.3
  },
  "luminance": 0.17133
}

Semantic roles & 50–950 ramp

primary
#556DCA
secondary
#D5CCA5
accent
#BE4CDC
background
#F9F9FD
surface
#F1F1FB
border
#CBCBD4
text
#0D0D15
muted
#7E7E83

Preview Lab

Preview with #556DCA

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

Preview Lab → · Contrast checker → · Palette generator →

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