#3548B8#3548B8

#3548B8 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.8% C 0.177 H 270.4°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#3548B8
RGB	rgb(53, 72, 184)
HSL	hsl(231, 55%, 46%)
HSV	hsv(231, 71%, 72%)
CMYK	cmyk(71.2%, 60.9%, 0%, 27.8%)
CIE-LAB	lab(35.70, 31.00, -61.36)
CIE-LCH	lch(35.70, 68.75, 296.80°)
OKLab	oklab(45.78% 0.0011 -0.1771)
OKLCH	oklch(45.78% 0.177 270.4)
XYZ	xyz(12.4343, 8.8511, 46.3912)
Luminance	0.0885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3548B8 #B8A535

analogous

#358AB8 #3548B8 #6435B8

triadic

#3548B8 #B83548 #48B835

tetradic

#3548B8 #B8358A #B8A535 #35B864

square

#3548B8 #B8358A #B8A535 #35B864

split-complementary

#3548B8 #B86435 #8AB835

monochromatic

#1A2359 #273588 #3548B8 #5B6CD0 #8A96DD

Accessibility & contrast

On white

7.58

#3548B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3548B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3548B8

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3548B8	#FFFFFF	#000000	##FFFFFF
##3548B8	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABC

Deuteranopia (green-blind)

#004EB6

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3548b8;
/* rgb */ color: rgb(53, 72, 184);
/* oklch */ color: oklch(45.8% 0.177 270.4);

Tailwind

colors: {
  custom: {
    50: '#7e7ace',
    500: '#3548b8',
    950: '#000000',
  },
}

SCSS

$custom: #3548b8;
$custom-light: #7e7ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3548b8",
  "rgb": {
    "r": 53,
    "g": 72,
    "b": 184
  },
  "hsl": {
    "h": 231.298,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.45777,
    "c": 0.17709,
    "h": 270.4
  },
  "luminance": 0.08852
}

Semantic roles & 50–950 ramp

primary

#3548B8

secondary

#C7BD81

accent

#C949DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3548B8

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

Preview Lab → · Contrast checker → · Palette generator →