#556BC5#556BC5

#556BC5 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.5% C 0.141 H 270.9°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#556BC5
RGB	rgb(85, 107, 197)
HSL	hsl(228, 49%, 55%)
HSV	hsv(228, 57%, 77%)
CMYK	cmyk(56.9%, 45.7%, 0%, 22.7%)
CIE-LAB	lab(47.59, 18.65, -49.62)
CIE-LCH	lch(47.59, 53.01, 290.59°)
OKLab	oklab(55.51% 0.0021 -0.1414)
OKLCH	oklch(55.51% 0.141 270.9)
XYZ	xyz(19.0787, 16.4765, 54.9874)
Luminance	0.1648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BC5 #C5AF55

analogous

#55A3C5 #556BC5 #7755C5

triadic

#556BC5 #C5556B #6BC555

tetradic

#556BC5 #C555A3 #C5AF55 #55C577

square

#556BC5 #C555A3 #C5AF55 #55C577

split-complementary

#556BC5 #C57755 #A3C555

monochromatic

#293877 #384DA5 #556BC5 #8393D5 #B0BAE4

Accessibility & contrast

On white

4.89

#556BC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#556BC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BC5

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BC5	#FFFFFF	#000000	##FFFFFF
##556BC5	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4276C8

Deuteranopia (green-blind)

#336CC3

Tritanopia (blue-blind)

#0A7F8E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556bc5;
/* rgb */ color: rgb(85, 107, 197);
/* oklch */ color: oklch(55.5% 0.141 270.9);

Tailwind

colors: {
  custom: {
    50: '#8d95d7',
    500: '#556bc5',
    950: '#000000',
  },
}

SCSS

$custom: #556bc5;
$custom-light: #8d95d7;
$custom-dark: #000000;

JSON

{
  "hex": "#556bc5",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 197
  },
  "hsl": {
    "h": 228.214,
    "s": 49.123,
    "l": 55.294
  },
  "oklch": {
    "l": 0.55508,
    "c": 0.14144,
    "h": 270.9
  },
  "luminance": 0.16478
}

Semantic roles & 50–950 ramp

primary

#556BC5

secondary

#D2C9A3

accent

#BE4FD9

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #556BC5

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

Preview Lab → · Contrast checker → · Palette generator →