#556EDB#556EDB

#556EDB is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.6% C 0.168 H 270.6°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#556EDB
RGB	rgb(85, 110, 219)
HSL	hsl(229, 65%, 60%)
HSV	hsv(229, 61%, 86%)
CMYK	cmyk(61.2%, 49.8%, 0%, 14.1%)
CIE-LAB	lab(49.73, 24.15, -58.75)
CIE-LCH	lch(49.73, 63.52, 292.35°)
OKLab	oklab(57.57% 0.0017 -0.1682)
OKLCH	oklch(57.57% 0.168 270.6)
XYZ	xyz(22.1041, 18.1958, 69.3514)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EDB #DBC255

analogous

#55B1DB #556EDB #7F55DB

triadic

#556EDB #DB556E #6EDB55

tetradic

#556EDB #DB55B1 #DBC255 #55DB7F

square

#556EDB #DB55B1 #DBC255 #55DB7F

split-complementary

#556EDB #DB7F55 #B1DB55

monochromatic

#203696 #2A48C8 #556EDB #8899E6 #BAC4F0

Accessibility & contrast

On white

4.53

#556EDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#556EDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556EDB

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

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

#337CDF

Deuteranopia (green-blind)

#1271D9

Tritanopia (blue-blind)

#00879A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #556edb;
/* rgb */ color: rgb(85, 110, 219);
/* oklch */ color: oklch(57.6% 0.168 270.6);

Tailwind

colors: {
  custom: {
    50: '#9197e7',
    500: '#556edb',
    950: '#000000',
  },
}

SCSS

$custom: #556edb;
$custom-light: #9197e7;
$custom-dark: #000000;

JSON

{
  "hex": "#556edb",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 219
  },
  "hsl": {
    "h": 228.806,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.57567,
    "c": 0.16822,
    "h": 270.6
  },
  "luminance": 0.18198
}

Semantic roles & 50–950 ramp

primary

#556EDB

secondary

#E0D6AC

accent

#C940E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556EDB

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

Preview Lab → · Contrast checker → · Palette generator →