#556DCC#556DCC

#556DCC is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.4% C 0.149 H 270.4°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#556DCC
RGB	rgb(85, 109, 204)
HSL	hsl(228, 54%, 57%)
HSV	hsv(228, 58%, 80%)
CMYK	cmyk(58.3%, 46.6%, 0%, 20%)
CIE-LAB	lab(48.54, 19.73, -52.12)
CIE-LCH	lch(48.54, 55.73, 290.74°)
OKLab	oklab(56.37% 0.001 -0.1487)
OKLCH	oklch(56.37% 0.149 270.4)
XYZ	xyz(20.1104, 17.2266, 59.3803)
Luminance	0.1723 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DCC #CCB455

analogous

#55A9CC #556DCC #7955CC

triadic

#556DCC #CC556D #6DCC55

tetradic

#556DCC #CC55A9 #CCB455 #55CC79

square

#556DCC #CC55A9 #CCB455 #55CC79

split-complementary

#556DCC #CC7955 #A9CC55

monochromatic

#263980 #354DAF #556DCC #8495DA #B3BEE8

Accessibility & contrast

On white

4.72

#556DCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#556DCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DCC

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DCC	#FFFFFF	#000000	##FFFFFF
##556DCC	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)

#4079D0

Deuteranopia (green-blind)

#2E6ECA

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556dcc;
/* rgb */ color: rgb(85, 109, 204);
/* oklch */ color: oklch(56.4% 0.149 270.4);

Tailwind

colors: {
  custom: {
    50: '#8e96dc',
    500: '#556dcc',
    950: '#000000',
  },
}

SCSS

$custom: #556dcc;
$custom-light: #8e96dc;
$custom-dark: #000000;

JSON

{
  "hex": "#556dcc",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 204
  },
  "hsl": {
    "h": 227.899,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56367,
    "c": 0.14873,
    "h": 270.4
  },
  "luminance": 0.17228
}

Semantic roles & 50–950 ramp

primary

#556DCC

secondary

#D7CDA6

accent

#C04BDD

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556DCC

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

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