#556BB3#556BB3

#556BB3 is a mid, moderate blue. Relative luminance 0.157; OKLCH L 54.4% C 0.116 H 269.5°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#556BB3
RGB	rgb(85, 107, 179)
HSL	hsl(226, 38%, 52%)
HSV	hsv(226, 53%, 70%)
CMYK	cmyk(52.5%, 40.2%, 0%, 29.8%)
CIE-LAB	lab(46.58, 12.74, -40.82)
CIE-LCH	lch(46.58, 42.76, 287.33°)
OKLab	oklab(54.4% -0.0011 -0.1156)
OKLCH	oklch(54.4% 0.116 269.5)
XYZ	xyz(17.1380, 15.7002, 44.7664)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BB3 #B39D55

analogous

#559AB3 #556BB3 #6E55B3

triadic

#556BB3 #B3556B #6BB355

tetradic

#556BB3 #B3559A #B39D55 #55B36E

square

#556BB3 #B3559A #B39D55 #55B36E

split-complementary

#556BB3 #B36E55 #9AB355

monochromatic

#2C3862 #3F518C #556BB3 #7F90C6 #AAB5D9

Accessibility & contrast

On white

5.07

#556BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#556BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BB3

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BB3	#FFFFFF	#000000	##FFFFFF
##556BB3	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E73B6

Deuteranopia (green-blind)

#446BB1

Tritanopia (blue-blind)

#297A86

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #556bb3;
/* rgb */ color: rgb(85, 107, 179);
/* oklch */ color: oklch(54.4% 0.116 269.5);

Tailwind

colors: {
  custom: {
    50: '#8b95ca',
    500: '#556bb3',
    950: '#000000',
  },
}

SCSS

$custom: #556bb3;
$custom-light: #8b95ca;
$custom-dark: #000000;

JSON

{
  "hex": "#556bb3",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 179
  },
  "hsl": {
    "h": 225.957,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.54401,
    "c": 0.11563,
    "h": 269.5
  },
  "luminance": 0.15701
}

Semantic roles & 50–950 ramp

primary

#556BB3

secondary

#C7BD9D

accent

#B35ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556BB3

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

Preview Lab → · Contrast checker → · Palette generator →