#545BB5#545BB5

#545BB5 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.2% C 0.140 H 276.9°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#545BB5
RGB	rgb(84, 91, 181)
HSL	hsl(236, 40%, 52%)
HSV	hsv(236, 54%, 71%)
CMYK	cmyk(53.6%, 49.7%, 0%, 29%)
CIE-LAB	lab(42.31, 23.20, -48.80)
CIE-LCH	lch(42.31, 54.04, 295.43°)
OKLab	oklab(51.17% 0.0168 -0.1392)
OKLCH	oklch(51.17% 0.14 276.9)
XYZ	xyz(15.7351, 12.7022, 45.3297)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#545BB5 #B5AE54

analogous

#548CB5 #545BB5 #7E54B5

triadic

#545BB5 #B5545B #5BB554

tetradic

#545BB5 #B5548C #B5AE54 #54B57E

square

#545BB5 #B5548C #B5AE54 #54B57E

split-complementary

#545BB5 #B57E54 #8CB554

monochromatic

#2B2F64 #3E438E #545BB5 #7F84C7 #A9ADDA

Accessibility & contrast

On white

5.93

#545BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#545BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #545BB5

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##545BB5	#FFFFFF	#000000	##FFFFFF
##545BB5	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F68B8

Deuteranopia (green-blind)

#2460B3

Tritanopia (blue-blind)

#276F7F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #545bb5;
/* rgb */ color: rgb(84, 91, 181);
/* oklch */ color: oklch(51.2% 0.140 276.9);

Tailwind

colors: {
  custom: {
    50: '#8b89cc',
    500: '#545bb5',
    950: '#000000',
  },
}

SCSS

$custom: #545bb5;
$custom-light: #8b89cc;
$custom-dark: #000000;

JSON

{
  "hex": "#545bb5",
  "rgb": {
    "r": 84,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 235.67,
    "s": 39.592,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51167,
    "c": 0.1402,
    "h": 276.9
  },
  "luminance": 0.12703
}

Semantic roles & 50–950 ramp

primary

#545BB5

secondary

#C8C59D

accent

#C758CF

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0B13

muted

#7D7C82

Preview Lab

Preview with #545BB5

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

Preview Lab → · Contrast checker → · Palette generator →