#3548B5#3548B5

#3548B5 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.5% C 0.173 H 270.4°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#3548B5
RGB	rgb(53, 72, 181)
HSL	hsl(231, 55%, 46%)
HSV	hsv(231, 71%, 71%)
CMYK	cmyk(70.7%, 60.2%, 0%, 29%)
CIE-LAB	lab(35.45, 29.91, -59.99)
CIE-LCH	lch(35.45, 67.03, 296.50°)
OKLab	oklab(45.52% 0.0012 -0.1731)
OKLCH	oklch(45.52% 0.173 270.4)
XYZ	xyz(12.1232, 8.7266, 44.7526)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3548B5 #B5A235

analogous

#3588B5 #3548B5 #6235B5

triadic

#3548B5 #B53548 #48B535

tetradic

#3548B5 #B53588 #B5A235 #35B562

square

#3548B5 #B53588 #B5A235 #35B562

split-complementary

#3548B5 #B56235 #88B535

monochromatic

#192256 #273586 #3548B5 #596ACE #8895DC

Accessibility & contrast

On white

7.65

#3548B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3548B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3548B5

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3548B5	#FFFFFF	#000000	##FFFFFF
##3548B5	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B9

Deuteranopia (green-blind)

#004EB3

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3548b5;
/* rgb */ color: rgb(53, 72, 181);
/* oklch */ color: oklch(45.5% 0.173 270.4);

Tailwind

colors: {
  custom: {
    50: '#7d7acc',
    500: '#3548b5',
    950: '#000000',
  },
}

SCSS

$custom: #3548b5;
$custom-light: #7d7acc;
$custom-dark: #000000;

JSON

{
  "hex": "#3548b5",
  "rgb": {
    "r": 53,
    "g": 72,
    "b": 181
  },
  "hsl": {
    "h": 231.094,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.45521,
    "c": 0.17306,
    "h": 270.4
  },
  "luminance": 0.08728
}

Semantic roles & 50–950 ramp

primary

#3548B5

secondary

#C6BC80

accent

#C84ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3548B5

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

Preview Lab → · Contrast checker → · Palette generator →