#556FDF#556FDF

#556FDF is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.0% C 0.172 H 270.4°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#556FDF
RGB	rgb(85, 111, 223)
HSL	hsl(229, 68%, 60%)
HSV	hsv(229, 62%, 87%)
CMYK	cmyk(61.9%, 50.2%, 0%, 12.5%)
CIE-LAB	lab(50.25, 24.88, -60.18)
CIE-LCH	lch(50.25, 65.12, 292.46°)
OKLab	oklab(58.04% 0.0012 -0.1724)
OKLCH	oklch(58.04% 0.172 270.4)
XYZ	xyz(22.7456, 18.6259, 72.1942)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FDF #DFC555

analogous

#55B4DF #556FDF #8055DF

triadic

#556FDF #DF556F #6FDF55

tetradic

#556FDF #DF55B4 #DFC555 #55DF80

square

#556FDF #DF55B4 #DFC555 #55DF80

split-complementary

#556FDF #DF8055 #B4DF55

monochromatic

#1D359C #2747D0 #556FDF #899BE9 #BCC6F2

Accessibility & contrast

On white

4.44

#556FDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#556FDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556FDF

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FDF	#FFFFFF	#000000	##000000
##556FDF	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#307EE3

Deuteranopia (green-blind)

#0672DD

Tritanopia (blue-blind)

#00899C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #556fdf;
/* rgb */ color: rgb(85, 111, 223);
/* oklch */ color: oklch(58.0% 0.172 270.4);

Tailwind

colors: {
  custom: {
    50: '#9198ea',
    500: '#556fdf',
    950: '#000000',
  },
}

SCSS

$custom: #556fdf;
$custom-light: #9198ea;
$custom-dark: #000000;

JSON

{
  "hex": "#556fdf",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 223
  },
  "hsl": {
    "h": 228.696,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.58038,
    "c": 0.17241,
    "h": 270.4
  },
  "luminance": 0.18628
}

Semantic roles & 50–950 ramp

primary

#556FDF

secondary

#E2D8AE

accent

#AD15D0

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556FDF

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

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