#556AC9#556AC9

#556AC9 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.6% C 0.148 H 271.4°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#556AC9
RGB	rgb(85, 106, 201)
HSL	hsl(229, 52%, 56%)
HSV	hsv(229, 58%, 79%)
CMYK	cmyk(57.7%, 47.3%, 0%, 21.2%)
CIE-LAB	lab(47.57, 20.60, -51.97)
CIE-LCH	lch(47.57, 55.90, 291.62°)
OKLab	oklab(55.56% 0.0037 -0.1483)
OKLCH	oklch(55.56% 0.148 271.4)
XYZ	xyz(19.4395, 16.4549, 57.3987)
Luminance	0.1646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556AC9 #C9B455

analogous

#55A4C9 #556AC9 #7A55C9

triadic

#556AC9 #C9556A #6AC955

tetradic

#556AC9 #C955A4 #C9B455 #55C97A

square

#556AC9 #C955A4 #C9B455 #55C97A

split-complementary

#556AC9 #C97A55 #A4C955

monochromatic

#27377C #364BAB #556AC9 #8393D8 #B2BBE7

Accessibility & contrast

On white

4.89

#556AC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#556AC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556AC9

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556AC9	#FFFFFF	#000000	##FFFFFF
##556AC9	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C76CD

Deuteranopia (green-blind)

#2B6CC7

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556ac9;
/* rgb */ color: rgb(85, 106, 201);
/* oklch */ color: oklch(55.6% 0.148 271.4);

Tailwind

colors: {
  custom: {
    50: '#8e94da',
    500: '#556ac9',
    950: '#000000',
  },
}

SCSS

$custom: #556ac9;
$custom-light: #8e94da;
$custom-dark: #000000;

JSON

{
  "hex": "#556ac9",
  "rgb": {
    "r": 85,
    "g": 106,
    "b": 201
  },
  "hsl": {
    "h": 229.138,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.55564,
    "c": 0.14837,
    "h": 271.4
  },
  "luminance": 0.16456
}

Semantic roles & 50–950 ramp

primary

#556AC9

secondary

#D5CCA5

accent

#C14DDB

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556AC9

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

Preview Lab → · Contrast checker → · Palette generator →