#545CB5#545CB5

#545CB5 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.4% C 0.139 H 276.5°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#545CB5
RGB	rgb(84, 92, 181)
HSL	hsl(235, 40%, 52%)
HSV	hsv(235, 54%, 71%)
CMYK	cmyk(53.6%, 49.2%, 0%, 29%)
CIE-LAB	lab(42.57, 22.57, -48.38)
CIE-LCH	lch(42.57, 53.39, 295.01°)
OKLab	oklab(51.37% 0.0157 -0.1379)
OKLCH	oklch(51.37% 0.139 276.5)
XYZ	xyz(15.8211, 12.8743, 45.3584)
Luminance	0.1288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#545CB5 #B5AD54

analogous

#548CB5 #545CB5 #7D54B5

triadic

#545CB5 #B5545C #5CB554

tetradic

#545CB5 #B5548C #B5AD54 #54B57D

square

#545CB5 #B5548C #B5AD54 #54B57D

split-complementary

#545CB5 #B57D54 #8CB554

monochromatic

#2B3064 #3E448E #545CB5 #7F85C7 #A9ADDA

Accessibility & contrast

On white

5.87

#545CB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#545CB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #545CB5

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##545CB5	#FFFFFF	#000000	##FFFFFF
##545CB5	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3269B8

Deuteranopia (green-blind)

#2661B3

Tritanopia (blue-blind)

#277080

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #545cb5;
/* rgb */ color: rgb(84, 92, 181);
/* oklch */ color: oklch(51.4% 0.139 276.5);

Tailwind

colors: {
  custom: {
    50: '#8b8acc',
    500: '#545cb5',
    950: '#000000',
  },
}

SCSS

$custom: #545cb5;
$custom-light: #8b8acc;
$custom-dark: #000000;

JSON

{
  "hex": "#545cb5",
  "rgb": {
    "r": 84,
    "g": 92,
    "b": 181
  },
  "hsl": {
    "h": 235.052,
    "s": 39.592,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51365,
    "c": 0.13883,
    "h": 276.5
  },
  "luminance": 0.12875
}

Semantic roles & 50–950 ramp

primary

#545CB5

secondary

#C8C49D

accent

#C658CF

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0B13

muted

#7D7C82

Preview Lab

Preview with #545CB5

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

Preview Lab → · Contrast checker → · Palette generator →