#556DB3#556DB3

#556DB3 is a mid, moderate blue. Relative luminance 0.161; OKLCH L 54.8% C 0.113 H 268.2°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#556DB3
RGB	rgb(85, 109, 179)
HSL	hsl(225, 38%, 52%)
HSV	hsv(225, 53%, 70%)
CMYK	cmyk(52.5%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(47.13, 11.50, -39.94)
CIE-LCH	lch(47.13, 41.56, 286.06°)
OKLab	oklab(54.83% -0.0035 -0.113)
OKLCH	oklch(54.83% 0.113 268.2)
XYZ	xyz(17.3490, 16.1221, 44.8367)
Luminance	0.1612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DB3 #B39B55

analogous

#559CB3 #556DB3 #6C55B3

triadic

#556DB3 #B3556D #6DB355

tetradic

#556DB3 #B3559C #B39B55 #55B36C

square

#556DB3 #B3559C #B39B55 #55B36C

split-complementary

#556DB3 #B36C55 #9CB355

monochromatic

#2C3A62 #3F528C #556DB3 #7F91C6 #AAB6D9

Accessibility & contrast

On white

4.97

#556DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#556DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DB3

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DB3	#FFFFFF	#000000	##FFFFFF
##556DB3	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5174B6

Deuteranopia (green-blind)

#476CB1

Tritanopia (blue-blind)

#297C87

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556db3;
/* rgb */ color: rgb(85, 109, 179);
/* oklch */ color: oklch(54.8% 0.113 268.2);

Tailwind

colors: {
  custom: {
    50: '#8b96ca',
    500: '#556db3',
    950: '#000000',
  },
}

SCSS

$custom: #556db3;
$custom-light: #8b96ca;
$custom-dark: #000000;

JSON

{
  "hex": "#556db3",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 224.681,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.54829,
    "c": 0.11308,
    "h": 268.2
  },
  "luminance": 0.16123
}

Semantic roles & 50–950 ramp

primary

#556DB3

secondary

#C7BC9D

accent

#B05ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556DB3

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

Preview Lab → · Contrast checker → · Palette generator →