#555BC0#555BC0

#555BC0 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.0% C 0.155 H 277.0°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#555BC0
RGB	rgb(85, 91, 192)
HSL	hsl(237, 46%, 54%)
HSV	hsv(237, 56%, 75%)
CMYK	cmyk(55.7%, 52.6%, 0%, 24.7%)
CIE-LAB	lab(43.09, 27.01, -53.96)
CIE-LCH	lch(43.09, 60.34, 296.59°)
OKLab	oklab(52% 0.0189 -0.1543)
OKLCH	oklch(52% 0.155 277)
XYZ	xyz(16.9988, 13.2181, 51.5145)
Luminance	0.1322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BC0 #C0BA55

analogous

#5590C0 #555BC0 #8555C0

triadic

#555BC0 #C0555B #5BC055

tetradic

#555BC0 #C05590 #C0BA55 #55C085

square

#555BC0 #C05590 #C0BA55 #55C085

split-complementary

#555BC0 #C08555 #90C055

monochromatic

#2A2E71 #3A409D #555BC0 #8286D1 #AEB1E1

Accessibility & contrast

On white

5.76

#555BC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#555BC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BC0

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BC0	#FFFFFF	#000000	##FFFFFF
##555BC0	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#226AC4

Deuteranopia (green-blind)

#0B61BE

Tritanopia (blue-blind)

#1C7285

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555bc0;
/* rgb */ color: rgb(85, 91, 192);
/* oklch */ color: oklch(52.0% 0.155 277.0);

Tailwind

colors: {
  custom: {
    50: '#8d89d4',
    500: '#555bc0',
    950: '#000000',
  },
}

SCSS

$custom: #555bc0;
$custom-light: #8d89d4;
$custom-dark: #000000;

JSON

{
  "hex": "#555bc0",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 192
  },
  "hsl": {
    "h": 236.636,
    "s": 45.923,
    "l": 54.314
  },
  "oklch": {
    "l": 0.51999,
    "c": 0.15549,
    "h": 277
  },
  "luminance": 0.13219
}

Semantic roles & 50–950 ramp

primary

#555BC0

secondary

#CFCDA2

accent

#CE52D6

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #555BC0

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

Preview Lab → · Contrast checker → · Palette generator →