#556BCC#556BCC

#556BCC is a mid, vivid blue. Relative luminance 0.168; OKLCH L 56.0% C 0.151 H 271.2°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#556BCC
RGB	rgb(85, 107, 204)
HSL	hsl(229, 54%, 57%)
HSV	hsv(229, 58%, 80%)
CMYK	cmyk(58.3%, 47.5%, 0%, 20%)
CIE-LAB	lab(48.01, 20.98, -52.97)
CIE-LCH	lch(48.01, 56.97, 291.60°)
OKLab	oklab(55.96% 0.0031 -0.1512)
OKLCH	oklch(55.96% 0.151 271.2)
XYZ	xyz(19.8995, 16.8048, 59.3100)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BCC #CCB655

analogous

#55A6CC #556BCC #7B55CC

triadic

#556BCC #CC556B #6BCC55

tetradic

#556BCC #CC55A6 #CCB655 #55CC7B

square

#556BCC #CC55A6 #CCB655 #55CC7B

split-complementary

#556BCC #CC7B55 #A6CC55

monochromatic

#263780 #354BAF #556BCC #8494DA #B3BDE8

Accessibility & contrast

On white

4.82

#556BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#556BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BCC

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BCC	#FFFFFF	#000000	##FFFFFF
##556BCC	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C77D0

Deuteranopia (green-blind)

#296DCA

Tritanopia (blue-blind)

#008192

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #556bcc;
/* rgb */ color: rgb(85, 107, 204);
/* oklch */ color: oklch(56.0% 0.151 271.2);

Tailwind

colors: {
  custom: {
    50: '#8e95dc',
    500: '#556bcc',
    950: '#000000',
  },
}

SCSS

$custom: #556bcc;
$custom-light: #8e95dc;
$custom-dark: #000000;

JSON

{
  "hex": "#556bcc",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 204
  },
  "hsl": {
    "h": 228.908,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.55963,
    "c": 0.15128,
    "h": 271.2
  },
  "luminance": 0.16806
}

Semantic roles & 50–950 ramp

primary

#556BCC

secondary

#D7CEA6

accent

#C24BDD

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556BCC

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

Preview Lab → · Contrast checker → · Palette generator →