#555FBA#555FBA

#555FBA is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.4% C 0.142 H 275.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#555FBA
RGB	rgb(85, 95, 186)
HSL	hsl(234, 42%, 53%)
HSV	hsv(234, 54%, 73%)
CMYK	cmyk(54.3%, 48.9%, 0%, 27.1%)
CIE-LAB	lab(43.74, 22.53, -49.43)
CIE-LCH	lch(43.74, 54.32, 294.51°)
OKLab	oklab(52.37% 0.014 -0.141)
OKLCH	oklch(52.37% 0.142 275.7)
XYZ	xyz(16.6986, 13.6598, 48.2015)
Luminance	0.1366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FBA #BAB055

analogous

#5591BA #555FBA #7D55BA

triadic

#555FBA #BA555F #5FBA55

tetradic

#555FBA #BA5591 #BAB055 #55BA7D

square

#555FBA #BA5591 #BAB055 #55BA7D

split-complementary

#555FBA #BA7D55 #91BA55

monochromatic

#2B316A #3D4595 #555FBA #8188CC #ACB1DD

Accessibility & contrast

On white

5.63

#555FBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#555FBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FBA

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FBA	#FFFFFF	#000000	##FFFFFF
##555FBA	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336CBD

Deuteranopia (green-blind)

#2763B8

Tritanopia (blue-blind)

#247383

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555fba;
/* rgb */ color: rgb(85, 95, 186);
/* oklch */ color: oklch(52.4% 0.142 275.7);

Tailwind

colors: {
  custom: {
    50: '#8c8ccf',
    500: '#555fba',
    950: '#000000',
  },
}

SCSS

$custom: #555fba;
$custom-light: #8c8ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#555fba",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 186
  },
  "hsl": {
    "h": 234.059,
    "s": 42.259,
    "l": 53.137
  },
  "oklch": {
    "l": 0.52366,
    "c": 0.14165,
    "h": 275.7
  },
  "luminance": 0.13661
}

Semantic roles & 50–950 ramp

primary

#555FBA

secondary

#CBC7A0

accent

#C656D2

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #555FBA

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

Preview Lab → · Contrast checker → · Palette generator →