#545BB3#545BB3

#545BB3 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.137 H 276.9°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#545BB3
RGB	rgb(84, 91, 179)
HSL	hsl(236, 38%, 52%)
HSV	hsv(236, 53%, 70%)
CMYK	cmyk(53.1%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(42.19, 22.55, -47.83)
CIE-LCH	lch(42.19, 52.88, 295.25°)
OKLab	oklab(51.03% 0.0166 -0.1363)
OKLCH	oklch(51.03% 0.137 276.9)
XYZ	xyz(15.5314, 12.6207, 44.2567)
Luminance	0.1262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#545BB3 #B3AC54

analogous

#548BB3 #545BB3 #7D54B3

triadic

#545BB3 #B3545B #5BB354

tetradic

#545BB3 #B3548B #B3AC54 #54B37D

square

#545BB3 #B3548B #B3AC54 #54B37D

split-complementary

#545BB3 #B37D54 #8BB354

monochromatic

#2B2F61 #3E448C #545BB3 #7E84C6 #A9ACD9

Accessibility & contrast

On white

5.96

#545BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#545BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #545BB3

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##545BB3	#FFFFFF	#000000	##FFFFFF
##545BB3	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3168B6

Deuteranopia (green-blind)

#2760B1

Tritanopia (blue-blind)

#2A6E7E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #545bb3;
/* rgb */ color: rgb(84, 91, 179);
/* oklch */ color: oklch(51.0% 0.137 276.9);

Tailwind

colors: {
  custom: {
    50: '#8b89ca',
    500: '#545bb3',
    950: '#000000',
  },
}

SCSS

$custom: #545bb3;
$custom-light: #8b89ca;
$custom-dark: #000000;

JSON

{
  "hex": "#545bb3",
  "rgb": {
    "r": 84,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 235.579,
    "s": 38.462,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51033,
    "c": 0.13734,
    "h": 276.9
  },
  "luminance": 0.12622
}

Semantic roles & 50–950 ramp

primary

#545BB3

secondary

#C6C39D

accent

#C659CE

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #545BB3

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

Preview Lab → · Contrast checker → · Palette generator →