#555DBA#555DBA

#555DBA is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.0% C 0.144 H 276.4°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#555DBA
RGB	rgb(85, 93, 186)
HSL	hsl(235, 42%, 53%)
HSV	hsv(235, 54%, 73%)
CMYK	cmyk(54.3%, 50%, 0%, 27.1%)
CIE-LAB	lab(43.22, 23.79, -50.27)
CIE-LCH	lch(43.22, 55.61, 295.33°)
OKLab	oklab(51.97% 0.0162 -0.1434)
OKLCH	oklch(51.97% 0.144 276.4)
XYZ	xyz(16.5208, 13.3041, 48.1422)
Luminance	0.1331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DBA #BAB255

analogous

#558FBA #555DBA #8055BA

triadic

#555DBA #BA555D #5DBA55

tetradic

#555DBA #BA558F #BAB255 #55BA80

square

#555DBA #BA558F #BAB255 #55BA80

split-complementary

#555DBA #BA8055 #8FBA55

monochromatic

#2B306A #3D4495 #555DBA #8186CC #ACB0DD

Accessibility & contrast

On white

5.74

#555DBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#555DBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DBA

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DBA	#FFFFFF	#000000	##FFFFFF
##555DBA	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6ABD

Deuteranopia (green-blind)

#2262B8

Tritanopia (blue-blind)

#247283

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555dba;
/* rgb */ color: rgb(85, 93, 186);
/* oklch */ color: oklch(52.0% 0.144 276.4);

Tailwind

colors: {
  custom: {
    50: '#8c8acf',
    500: '#555dba',
    950: '#000000',
  },
}

SCSS

$custom: #555dba;
$custom-light: #8c8acf;
$custom-dark: #000000;

JSON

{
  "hex": "#555dba",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 186
  },
  "hsl": {
    "h": 235.248,
    "s": 42.259,
    "l": 53.137
  },
  "oklch": {
    "l": 0.51971,
    "c": 0.14435,
    "h": 276.4
  },
  "luminance": 0.13305
}

Semantic roles & 50–950 ramp

primary

#555DBA

secondary

#CBC8A0

accent

#C856D2

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #555DBA

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

Preview Lab → · Contrast checker → · Palette generator →