#555CBC#555CBC

#555CBC is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.9% C 0.149 H 276.8°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#555CBC
RGB	rgb(85, 92, 188)
HSL	hsl(236, 43%, 54%)
HSV	hsv(236, 55%, 74%)
CMYK	cmyk(54.8%, 51.1%, 0%, 26.3%)
CIE-LAB	lab(43.09, 25.07, -51.64)
CIE-LCH	lch(43.09, 57.41, 295.90°)
OKLab	oklab(51.91% 0.0175 -0.1475)
OKLCH	oklch(51.91% 0.149 276.8)
XYZ	xyz(16.6477, 13.2153, 49.2408)
Luminance	0.1322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CBC #BCB555

analogous

#558FBC #555CBC #8155BC

triadic

#555CBC #BC555C #5CBC55

tetradic

#555CBC #BC558F #BCB555 #55BC81

square

#555CBC #BC558F #BCB555 #55BC81

split-complementary

#555CBC #BC8155 #8FBC55

monochromatic

#2B2F6C #3C4298 #555CBC #8186CD #ADB0DF

Accessibility & contrast

On white

5.76

#555CBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#555CBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CBC

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CBC	#FFFFFF	#000000	##FFFFFF
##555CBC	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)

#2A6ABF

Deuteranopia (green-blind)

#1B62BA

Tritanopia (blue-blind)

#227283

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555cbc;
/* rgb */ color: rgb(85, 92, 188);
/* oklch */ color: oklch(51.9% 0.149 276.8);

Tailwind

colors: {
  custom: {
    50: '#8d8ad1',
    500: '#555cbc',
    950: '#000000',
  },
}

SCSS

$custom: #555cbc;
$custom-light: #8d8ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#555cbc",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 188
  },
  "hsl": {
    "h": 235.922,
    "s": 43.46,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51912,
    "c": 0.14853,
    "h": 276.8
  },
  "luminance": 0.13216
}

Semantic roles & 50–950 ramp

primary

#555CBC

secondary

#CCC9A0

accent

#CB55D3

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #555CBC

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

Preview Lab → · Contrast checker → · Palette generator →