#556EC9#556EC9

#556EC9 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.4% C 0.143 H 269.8°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#556EC9
RGB	rgb(85, 110, 201)
HSL	hsl(227, 52%, 56%)
HSV	hsv(227, 58%, 79%)
CMYK	cmyk(57.7%, 45.3%, 0%, 21.2%)
CIE-LAB	lab(48.63, 18.11, -50.26)
CIE-LCH	lch(48.63, 53.42, 289.82°)
OKLab	oklab(56.38% -0.0005 -0.1432)
OKLCH	oklch(56.38% 0.143 269.8)
XYZ	xyz(19.8613, 17.2987, 57.5394)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EC9 #C9B055

analogous

#55A8C9 #556EC9 #7655C9

triadic

#556EC9 #C9556E #6EC955

tetradic

#556EC9 #C955A8 #C9B055 #55C976

square

#556EC9 #C955A8 #C9B055 #55C976

split-complementary

#556EC9 #C97655 #A8C955

monochromatic

#273A7C #364FAB #556EC9 #8396D8 #B2BDE7

Accessibility & contrast

On white

4.71

#556EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#556EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556EC9

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EC9	#FFFFFF	#000000	##FFFFFF
##556EC9	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4479CC

Deuteranopia (green-blind)

#346FC7

Tritanopia (blue-blind)

#008292

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #556ec9;
/* rgb */ color: rgb(85, 110, 201);
/* oklch */ color: oklch(56.4% 0.143 269.8);

Tailwind

colors: {
  custom: {
    50: '#8e97da',
    500: '#556ec9',
    950: '#000000',
  },
}

SCSS

$custom: #556ec9;
$custom-light: #8e97da;
$custom-dark: #000000;

JSON

{
  "hex": "#556ec9",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 201
  },
  "hsl": {
    "h": 227.069,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.56378,
    "c": 0.14325,
    "h": 269.8
  },
  "luminance": 0.173
}

Semantic roles & 50–950 ramp

primary

#556EC9

secondary

#D5CBA5

accent

#BC4DDB

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556EC9

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

Preview Lab → · Contrast checker → · Palette generator →