#555BD5#555BD5

#555BD5 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.5% C 0.184 H 276.1°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#555BD5
RGB	rgb(85, 91, 213)
HSL	hsl(237, 60%, 58%)
HSV	hsv(237, 60%, 84%)
CMYK	cmyk(60.1%, 57.3%, 0%, 16.5%)
CIE-LAB	lab(44.54, 33.91, -63.72)
CIE-LCH	lch(44.54, 72.18, 298.02°)
OKLab	oklab(53.54% 0.0196 -0.183)
OKLCH	oklch(53.54% 0.184 276.1)
XYZ	xyz(19.4937, 14.2161, 64.6546)
Luminance	0.1422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BD5 #D5CF55

analogous

#559BD5 #555BD5 #8F55D5

triadic

#555BD5 #D5555B #5BD555

tetradic

#555BD5 #D5559B #D5CF55 #55D58F

square

#555BD5 #D5559B #D5CF55 #55D58F

split-complementary

#555BD5 #D58F55 #9BD555

monochromatic

#23288D #2F36BE #555BD5 #868AE1 #B7BAED

Accessibility & contrast

On white

5.46

#555BD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#555BD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BD5

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BD5	#FFFFFF	#000000	##FFFFFF
##555BD5	1.00	5.46	3.84	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD9

Deuteranopia (green-blind)

#0064D3

Tritanopia (blue-blind)

#00788F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555bd5;
/* rgb */ color: rgb(85, 91, 213);
/* oklch */ color: oklch(53.5% 0.184 276.1);

Tailwind

colors: {
  custom: {
    50: '#9189e3',
    500: '#555bd5',
    950: '#000000',
  },
}

SCSS

$custom: #555bd5;
$custom-light: #9189e3;
$custom-dark: #000000;

JSON

{
  "hex": "#555bd5",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 213
  },
  "hsl": {
    "h": 237.188,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53543,
    "c": 0.1841,
    "h": 276.1
  },
  "luminance": 0.14218
}

Semantic roles & 50–950 ramp

primary

#555BD5

secondary

#DCDAA9

accent

#DC44E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B15

muted

#7E7C84

Preview Lab

Preview with #555BD5

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

Preview Lab → · Contrast checker → · Palette generator →