#556BC9#556BC9

#556BC9 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.8% C 0.147 H 271.0°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#556BC9
RGB	rgb(85, 107, 201)
HSL	hsl(229, 52%, 56%)
HSV	hsv(229, 58%, 79%)
CMYK	cmyk(57.7%, 46.8%, 0%, 21.2%)
CIE-LAB	lab(47.83, 19.98, -51.54)
CIE-LCH	lch(47.83, 55.28, 291.19°)
OKLab	oklab(55.77% 0.0027 -0.147)
OKLCH	oklch(55.77% 0.147 271)
XYZ	xyz(19.5431, 16.6622, 57.4333)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556BC9 #C9B355

analogous

#55A5C9 #556BC9 #7955C9

triadic

#556BC9 #C9556B #6BC955

tetradic

#556BC9 #C955A5 #C9B355 #55C979

square

#556BC9 #C955A5 #C9B355 #55C979

split-complementary

#556BC9 #C97955 #A5C955

monochromatic

#27387C #364CAB #556BC9 #8393D8 #B2BCE7

Accessibility & contrast

On white

4.85

#556BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#556BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556BC9

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556BC9	#FFFFFF	#000000	##FFFFFF
##556BC9	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E77CC

Deuteranopia (green-blind)

#2D6DC7

Tritanopia (blue-blind)

#008090

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #556bc9;
/* rgb */ color: rgb(85, 107, 201);
/* oklch */ color: oklch(55.8% 0.147 271.0);

Tailwind

colors: {
  custom: {
    50: '#8e95da',
    500: '#556bc9',
    950: '#000000',
  },
}

SCSS

$custom: #556bc9;
$custom-light: #8e95da;
$custom-dark: #000000;

JSON

{
  "hex": "#556bc9",
  "rgb": {
    "r": 85,
    "g": 107,
    "b": 201
  },
  "hsl": {
    "h": 228.621,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.55766,
    "c": 0.14707,
    "h": 271
  },
  "luminance": 0.16664
}

Semantic roles & 50–950 ramp

primary

#556BC9

secondary

#D5CCA5

accent

#C04DDB

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #556BC9

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

Preview Lab → · Contrast checker → · Palette generator →