#555FBE#555FBE

#555FBE is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.6% C 0.147 H 275.6°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#555FBE
RGB	rgb(85, 95, 190)
HSL	hsl(234, 45%, 54%)
HSV	hsv(234, 55%, 75%)
CMYK	cmyk(55.3%, 50%, 0%, 25.5%)
CIE-LAB	lab(43.99, 23.84, -51.35)
CIE-LCH	lch(43.99, 56.62, 294.91°)
OKLab	oklab(52.64% 0.0144 -0.1466)
OKLCH	oklch(52.64% 0.147 275.6)
XYZ	xyz(17.1298, 13.8322, 50.4724)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FBE #BEB455

analogous

#5594BE #555FBE #8055BE

triadic

#555FBE #BE555F #5FBE55

tetradic

#555FBE #BE5594 #BEB455 #55BE80

square

#555FBE #BE5594 #BEB455 #55BE80

split-complementary

#555FBE #BE8055 #94BE55

monochromatic

#2A316E #3B449B #555FBE #8189CF #AEB2E0

Accessibility & contrast

On white

5.58

#555FBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#555FBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FBE

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FBE	#FFFFFF	#000000	##FFFFFF
##555FBE	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6DC1

Deuteranopia (green-blind)

#2064BC

Tritanopia (blue-blind)

#1E7485

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #555fbe;
/* rgb */ color: rgb(85, 95, 190);
/* oklch */ color: oklch(52.6% 0.147 275.6);

Tailwind

colors: {
  custom: {
    50: '#8d8cd2',
    500: '#555fbe',
    950: '#000000',
  },
}

SCSS

$custom: #555fbe;
$custom-light: #8d8cd2;
$custom-dark: #000000;

JSON

{
  "hex": "#555fbe",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 190
  },
  "hsl": {
    "h": 234.286,
    "s": 44.681,
    "l": 53.922
  },
  "oklch": {
    "l": 0.52636,
    "c": 0.14732,
    "h": 275.6
  },
  "luminance": 0.13833
}

Semantic roles & 50–950 ramp

primary

#555FBE

secondary

#CECAA1

accent

#C853D4

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #555FBE

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

Preview Lab → · Contrast checker → · Palette generator →