#556DB5#556DB5

#556DB5 is a mid, moderate blue. Relative luminance 0.162; OKLCH L 54.9% C 0.116 H 268.5°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#556DB5
RGB	rgb(85, 109, 181)
HSL	hsl(225, 39%, 52%)
HSV	hsv(225, 53%, 71%)
CMYK	cmyk(53%, 39.8%, 0%, 29%)
CIE-LAB	lab(47.24, 12.15, -40.94)
CIE-LCH	lch(47.24, 42.70, 286.52°)
OKLab	oklab(54.95% -0.0031 -0.1159)
OKLCH	oklch(54.95% 0.116 268.5)
XYZ	xyz(17.5527, 16.2035, 45.9098)
Luminance	0.1620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DB5 #B59D55

analogous

#559DB5 #556DB5 #6D55B5

triadic

#556DB5 #B5556D #6DB555

tetradic

#556DB5 #B5559D #B59D55 #55B56D

square

#556DB5 #B5559D #B59D55 #55B56D

split-complementary

#556DB5 #B56D55 #9DB555

monochromatic

#2C3A64 #3E528F #556DB5 #8092C8 #AAB6DA

Accessibility & contrast

On white

4.95

#556DB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#556DB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #556DB5

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DB5	#FFFFFF	#000000	##FFFFFF
##556DB5	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5075B8

Deuteranopia (green-blind)

#456CB3

Tritanopia (blue-blind)

#267D88

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #556db5;
/* rgb */ color: rgb(85, 109, 181);
/* oklch */ color: oklch(54.9% 0.116 268.5);

Tailwind

colors: {
  custom: {
    50: '#8b96cb',
    500: '#556db5',
    950: '#000000',
  },
}

SCSS

$custom: #556db5;
$custom-light: #8b96cb;
$custom-dark: #000000;

JSON

{
  "hex": "#556db5",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 181
  },
  "hsl": {
    "h": 225,
    "s": 39.344,
    "l": 52.157
  },
  "oklch": {
    "l": 0.54945,
    "c": 0.11598,
    "h": 268.5
  },
  "luminance": 0.16205
}

Semantic roles & 50–950 ramp

primary

#556DB5

secondary

#C8BD9E

accent

#B259CF

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #556DB5

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

Preview Lab → · Contrast checker → · Palette generator →