#555BD4#555BD4

#555BD4 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.5% C 0.183 H 276.2°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#555BD4
RGB	rgb(85, 91, 212)
HSL	hsl(237, 60%, 58%)
HSV	hsv(237, 60%, 83%)
CMYK	cmyk(59.9%, 57.1%, 0%, 16.9%)
CIE-LAB	lab(44.47, 33.58, -63.27)
CIE-LCH	lch(44.47, 71.63, 297.96°)
OKLab	oklab(53.47% 0.0196 -0.1817)
OKLCH	oklch(53.47% 0.183 276.2)
XYZ	xyz(19.3672, 14.1654, 63.9882)
Luminance	0.1417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BD4 #D4CE55

analogous

#559BD4 #555BD4 #8E55D4

triadic

#555BD4 #D4555B #5BD455

tetradic

#555BD4 #D4559B #D4CE55 #55D48E

square

#555BD4 #D4559B #D4CE55 #55D48E

split-complementary

#555BD4 #D48E55 #9BD455

monochromatic

#23288B #3036BC #555BD4 #868AE0 #B7B9ED

Accessibility & contrast

On white

5.48

#555BD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#555BD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BD4

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BD4	#FFFFFF	#000000	##FFFFFF
##555BD4	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD8

Deuteranopia (green-blind)

#0064D2

Tritanopia (blue-blind)

#00788F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555bd4;
/* rgb */ color: rgb(85, 91, 212);
/* oklch */ color: oklch(53.5% 0.183 276.2);

Tailwind

colors: {
  custom: {
    50: '#9189e2',
    500: '#555bd4',
    950: '#000000',
  },
}

SCSS

$custom: #555bd4;
$custom-light: #9189e2;
$custom-dark: #000000;

JSON

{
  "hex": "#555bd4",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 212
  },
  "hsl": {
    "h": 237.165,
    "s": 59.624,
    "l": 58.235
  },
  "oklch": {
    "l": 0.53467,
    "c": 0.18276,
    "h": 276.2
  },
  "luminance": 0.14167
}

Semantic roles & 50–950 ramp

primary

#555BD4

secondary

#DCD9A9

accent

#DB45E3

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #555BD4

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

Preview Lab → · Contrast checker → · Palette generator →