#3548AD#3548AD

#3548AD is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.9% C 0.162 H 270.4°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#3548AD
RGB	rgb(53, 72, 173)
HSL	hsl(231, 53%, 44%)
HSV	hsv(231, 69%, 68%)
CMYK	cmyk(69.4%, 58.4%, 0%, 32.2%)
CIE-LAB	lab(34.82, 27.00, -56.28)
CIE-LCH	lch(34.82, 62.42, 295.63°)
OKLab	oklab(44.85% 0.0011 -0.1622)
OKLCH	oklch(44.85% 0.162 270.4)
XYZ	xyz(11.3258, 8.4076, 40.5530)
Luminance	0.0841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3548AD #AD9A35

analogous

#3584AD #3548AD #5E35AD

triadic

#3548AD #AD3548 #48AD35

tetradic

#3548AD #AD3584 #AD9A35 #35AD5E

square

#3548AD #AD3584 #AD9A35 #35AD5E

split-complementary

#3548AD #AD5E35 #84AD35

monochromatic

#18214F #27357E #3548AD #5467CB #8391D9

Accessibility & contrast

On white

7.83

#3548AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3548AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3548AD

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3548AD	#FFFFFF	#000000	##FFFFFF
##3548AD	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B0

Deuteranopia (green-blind)

#004DAB

Tritanopia (blue-blind)

#006173

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3548ad;
/* rgb */ color: rgb(53, 72, 173);
/* oklch */ color: oklch(44.9% 0.162 270.4);

Tailwind

colors: {
  custom: {
    50: '#7b7ac6',
    500: '#3548ad',
    950: '#000000',
  },
}

SCSS

$custom: #3548ad;
$custom-light: #7b7ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3548ad",
  "rgb": {
    "r": 53,
    "g": 72,
    "b": 173
  },
  "hsl": {
    "h": 230.5,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.4485,
    "c": 0.16216,
    "h": 270.4
  },
  "luminance": 0.08409
}

Semantic roles & 50–950 ramp

primary

#3548AD

secondary

#C3B77B

accent

#C64BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3548AD

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

Preview Lab → · Contrast checker → · Palette generator →