#556DDF#556DDF

#556DDF is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.6% C 0.175 H 271.0°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#556DDF
RGB	rgb(85, 109, 223)
HSL	hsl(230, 68%, 60%)
HSV	hsv(230, 62%, 87%)
CMYK	cmyk(61.9%, 51.1%, 0%, 12.5%)
CIE-LAB	lab(49.73, 26.12, -61.01)
CIE-LCH	lch(49.73, 66.37, 293.17°)
OKLab	oklab(57.65% 0.0031 -0.1749)
OKLCH	oklch(57.65% 0.175 271)
XYZ	xyz(22.5298, 18.1944, 72.1223)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DDF #DFC755

analogous

#55B2DF #556DDF #8255DF

triadic

#556DDF #DF556D #6DDF55

tetradic

#556DDF #DF55B2 #DFC755 #55DF82

square

#556DDF #DF55B2 #DFC755 #55DF82

split-complementary

#556DDF #DF8255 #B2DF55

monochromatic

#1D339C #2744D0 #556DDF #8999E9 #BCC5F2

Accessibility & contrast

On white

4.53

#556DDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#556DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556DDF

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DDF	#FFFFFF	#000000	##000000
##556DDF	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A7DE3

Deuteranopia (green-blind)

#0070DD

Tritanopia (blue-blind)

#00879C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #556ddf;
/* rgb */ color: rgb(85, 109, 223);
/* oklch */ color: oklch(57.6% 0.175 271.0);

Tailwind

colors: {
  custom: {
    50: '#9196ea',
    500: '#556ddf',
    950: '#000000',
  },
}

SCSS

$custom: #556ddf;
$custom-light: #9196ea;
$custom-dark: #000000;

JSON

{
  "hex": "#556ddf",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 223
  },
  "hsl": {
    "h": 229.565,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.57648,
    "c": 0.17491,
    "h": 271
  },
  "luminance": 0.18196
}

Semantic roles & 50–950 ramp

primary

#556DDF

secondary

#E2D9AE

accent

#B015D0

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556DDF

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

Preview Lab → · Contrast checker → · Palette generator →