#3548B1#3548B1

#3548B1 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.2% C 0.168 H 270.4°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#3548B1
RGB	rgb(53, 72, 177)
HSL	hsl(231, 54%, 45%)
HSV	hsv(231, 70%, 69%)
CMYK	cmyk(70.1%, 59.3%, 0%, 30.6%)
CIE-LAB	lab(35.13, 28.46, -58.14)
CIE-LCH	lch(35.13, 64.73, 296.08°)
OKLab	oklab(45.18% 0.0012 -0.1676)
OKLCH	oklch(45.18% 0.168 270.4)
XYZ	xyz(11.7187, 8.5648, 42.6220)
Luminance	0.0857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3548B1 #B19E35

analogous

#3586B1 #3548B1 #6035B1

triadic

#3548B1 #B13548 #48B135

tetradic

#3548B1 #B13586 #B19E35 #35B160

square

#3548B1 #B13586 #B19E35 #35B160

split-complementary

#3548B1 #B16035 #86B135

monochromatic

#192253 #273582 #3548B1 #5769CD #8693DB

Accessibility & contrast

On white

7.74

#3548B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3548B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3548B1

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3548B1	#FFFFFF	#000000	##FFFFFF
##3548B1	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B5

Deuteranopia (green-blind)

#004DAF

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3548b1;
/* rgb */ color: rgb(53, 72, 177);
/* oklch */ color: oklch(45.2% 0.168 270.4);

Tailwind

colors: {
  custom: {
    50: '#7c7ac9',
    500: '#3548b1',
    950: '#000000',
  },
}

SCSS

$custom: #3548b1;
$custom-light: #7c7ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3548b1",
  "rgb": {
    "r": 53,
    "g": 72,
    "b": 177
  },
  "hsl": {
    "h": 230.806,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45183,
    "c": 0.16763,
    "h": 270.4
  },
  "luminance": 0.08566
}

Semantic roles & 50–950 ramp

primary

#3548B1

secondary

#C4BA7D

accent

#C74BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3548B1

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

Preview Lab → · Contrast checker → · Palette generator →