#556CCD#556CCD

#556CCD is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.2% C 0.151 H 270.8°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#556CCD
RGB	rgb(85, 108, 205)
HSL	hsl(229, 55%, 57%)
HSV	hsv(229, 59%, 80%)
CMYK	cmyk(58.5%, 47.3%, 0%, 19.6%)
CIE-LAB	lab(48.34, 20.69, -53.02)
CIE-LCH	lch(48.34, 56.91, 291.32°)
OKLab	oklab(56.23% 0.0022 -0.1514)
OKLCH	oklch(56.23% 0.151 270.8)
XYZ	xyz(20.1247, 17.0626, 59.9787)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556CCD #CDB655

analogous

#55A8CD #556CCD #7A55CD

triadic

#556CCD #CD556C #6CCD55

tetradic

#556CCD #CD55A8 #CDB655 #55CD7A

square

#556CCD #CD55A8 #CDB655 #55CD7A

split-complementary

#556CCD #CD7A55 #A8CD55

monochromatic

#263882 #344CB1 #556CCD #8495DB #B4BEE9

Accessibility & contrast

On white

4.76

#556CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#556CCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556CCD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556CCD	#FFFFFF	#000000	##FFFFFF
##556CCD	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D78D1

Deuteranopia (green-blind)

#2A6ECB

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556ccd;
/* rgb */ color: rgb(85, 108, 205);
/* oklch */ color: oklch(56.2% 0.151 270.8);

Tailwind

colors: {
  custom: {
    50: '#8f95dd',
    500: '#556ccd',
    950: '#000000',
  },
}

SCSS

$custom: #556ccd;
$custom-light: #8f95dd;
$custom-dark: #000000;

JSON

{
  "hex": "#556ccd",
  "rgb": {
    "r": 85,
    "g": 108,
    "b": 205
  },
  "hsl": {
    "h": 228.5,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.5623,
    "c": 0.15141,
    "h": 270.8
  },
  "luminance": 0.17064
}

Semantic roles & 50–950 ramp

primary

#556CCD

secondary

#D7CEA6

accent

#C24ADE

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556CCD

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

Preview Lab → · Contrast checker → · Palette generator →