#556FC9#556FC9

#556FC9 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.6% C 0.142 H 269.3°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#556FC9
RGB	rgb(85, 111, 201)
HSL	hsl(227, 52%, 56%)
HSV	hsv(227, 58%, 79%)
CMYK	cmyk(57.7%, 44.8%, 0%, 21.2%)
CIE-LAB	lab(48.90, 17.49, -49.83)
CIE-LCH	lch(48.90, 52.81, 289.34°)
OKLab	oklab(56.58% -0.0016 -0.142)
OKLCH	oklch(56.58% 0.142 269.3)
XYZ	xyz(19.9698, 17.5157, 57.5755)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556FC9 #C9AF55

analogous

#55A9C9 #556FC9 #7555C9

triadic

#556FC9 #C9556F #6FC955

tetradic

#556FC9 #C955A9 #C9AF55 #55C975

square

#556FC9 #C955A9 #C9AF55 #55C975

split-complementary

#556FC9 #C97555 #A9C955

monochromatic

#273A7C #3650AB #556FC9 #8396D8 #B2BEE7

Accessibility & contrast

On white

4.66

#556FC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#556FC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556FC9

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556FC9	#FFFFFF	#000000	##FFFFFF
##556FC9	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467ACC

Deuteranopia (green-blind)

#366FC7

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #556fc9;
/* rgb */ color: rgb(85, 111, 201);
/* oklch */ color: oklch(56.6% 0.142 269.3);

Tailwind

colors: {
  custom: {
    50: '#8e98da',
    500: '#556fc9',
    950: '#000000',
  },
}

SCSS

$custom: #556fc9;
$custom-light: #8e98da;
$custom-dark: #000000;

JSON

{
  "hex": "#556fc9",
  "rgb": {
    "r": 85,
    "g": 111,
    "b": 201
  },
  "hsl": {
    "h": 226.552,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.56584,
    "c": 0.14198,
    "h": 269.3
  },
  "luminance": 0.17517
}

Semantic roles & 50–950 ramp

primary

#556FC9

secondary

#D5CAA5

accent

#BB4DDB

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556FC9

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

Preview Lab → · Contrast checker → · Palette generator →