#556BD5#556BD5

#556BD5 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.6% C 0.164 H 271.4°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#556BD5
RGB	rgb(85, 107, 213)
HSL	hsl(230, 60%, 58%)
HSV	hsv(230, 60%, 84%)
CMYK	cmyk(60.1%, 49.8%, 0%, 16.5%)
CIE-LAB	lab(48.57, 23.99, -57.21)
CIE-LCH	lch(48.57, 62.04, 292.75°)
OKLab	oklab(56.57% 0.0041 -0.1637)
OKLCH	oklch(56.57% 0.164 271.4)
XYZ	xyz(21.0103, 17.2491, 65.1601)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BD5 #D5BF55

analogous

#55ABD5 #556BD5 #7F55D5

triadic

#556BD5 #D5556B #6BD555

tetradic

#556BD5 #D555AB #D5BF55 #55D57F

square

#556BD5 #D555AB #D5BF55 #55D57F

split-complementary

#556BD5 #D57F55 #ABD555

monochromatic

#23358D #2F47BE #556BD5 #8696E1 #B7C0ED

Accessibility & contrast

On white

4.72

#556BD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#556BD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BD5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BD5	#FFFFFF	#000000	##FFFFFF
##556BD5	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3279D9

Deuteranopia (green-blind)

#166ED3

Tritanopia (blue-blind)

#008396

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556bd5;
/* rgb */ color: rgb(85, 107, 213);
/* oklch */ color: oklch(56.6% 0.164 271.4);

Tailwind

colors: {
  custom: {
    50: '#9095e2',
    500: '#556bd5',
    950: '#000000',
  },
}

SCSS

$custom: #556bd5;
$custom-light: #9095e2;
$custom-dark: #000000;

JSON

{
  "hex": "#556bd5",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 213
  },
  "hsl": {
    "h": 229.688,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.56567,
    "c": 0.16377,
    "h": 271.4
  },
  "luminance": 0.17251
}

Semantic roles & 50–950 ramp

primary

#556BD5

secondary

#DCD4A9

accent

#C844E4

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #556BD5

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

Preview Lab → · Contrast checker → · Palette generator →