#555BC4#555BC4

#555BC4 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.161 H 276.8°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#555BC4
RGB	rgb(85, 91, 196)
HSL	hsl(237, 48%, 55%)
HSV	hsv(237, 57%, 77%)
CMYK	cmyk(56.6%, 53.6%, 0%, 23.1%)
CIE-LAB	lab(43.36, 28.32, -55.85)
CIE-LCH	lch(43.36, 62.62, 296.89°)
OKLab	oklab(52.28% 0.0191 -0.1599)
OKLCH	oklch(52.28% 0.161 276.8)
XYZ	xyz(17.4480, 13.3978, 53.8804)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BC4 #C4BE55

analogous

#5592C4 #555BC4 #8755C4

triadic

#555BC4 #C4555B #5BC455

tetradic

#555BC4 #C45592 #C4BE55 #55C487

square

#555BC4 #C45592 #C4BE55 #55C487

split-complementary

#555BC4 #C48755 #92C455

monochromatic

#292D76 #393EA3 #555BC4 #8287D4 #B0B3E4

Accessibility & contrast

On white

5.71

#555BC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#555BC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BC4

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BC4	#FFFFFF	#000000	##FFFFFF
##555BC4	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6BC8

Deuteranopia (green-blind)

#0062C2

Tritanopia (blue-blind)

#157387

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555bc4;
/* rgb */ color: rgb(85, 91, 196);
/* oklch */ color: oklch(52.3% 0.161 276.8);

Tailwind

colors: {
  custom: {
    50: '#8e89d6',
    500: '#555bc4',
    950: '#000000',
  },
}

SCSS

$custom: #555bc4;
$custom-light: #8e89d6;
$custom-dark: #000000;

JSON

{
  "hex": "#555bc4",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 196
  },
  "hsl": {
    "h": 236.757,
    "s": 48.472,
    "l": 55.098
  },
  "oklch": {
    "l": 0.52284,
    "c": 0.16104,
    "h": 276.8
  },
  "luminance": 0.13399
}

Semantic roles & 50–950 ramp

primary

#555BC4

secondary

#D2CFA3

accent

#D150D8

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #555BC4

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

Preview Lab → · Contrast checker → · Palette generator →