#3B48BB#3B48BB

#3B48BB is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.4% C 0.179 H 272.3°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#3B48BB
RGB	rgb(59, 72, 187)
HSL	hsl(234, 52%, 48%)
HSV	hsv(234, 68%, 73%)
CMYK	cmyk(68.4%, 61.5%, 0%, 26.7%)
CIE-LAB	lab(36.27, 32.87, -62.17)
CIE-LCH	lch(36.27, 70.33, 297.87°)
OKLab	oklab(46.37% 0.0073 -0.1793)
OKLCH	oklch(46.37% 0.179 272.3)
XYZ	xyz(13.0876, 9.1512, 48.0807)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B48BB #BBAE3B

analogous

#3B88BB #3B48BB #6E3BBB

triadic

#3B48BB #BB3B48 #48BB3B

tetradic

#3B48BB #BB3B88 #BBAE3B #3BBB6E

square

#3B48BB #BB3B88 #BBAE3B #3BBB6E

split-complementary

#3B48BB #BB6E3B #88BB3B

monochromatic

#1E245E #2C368C #3B48BB #6570CE #939BDD

Accessibility & contrast

On white

7.42

#3B48BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#3B48BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B48BB

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B48BB	#FFFFFF	#000000	##FFFFFF
##3B48BB	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBF

Deuteranopia (green-blind)

#0050B9

Tritanopia (blue-blind)

#00657A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3b48bb;
/* rgb */ color: rgb(59, 72, 187);
/* oklch */ color: oklch(46.4% 0.179 272.3);

Tailwind

colors: {
  custom: {
    50: '#817bd0',
    500: '#3b48bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b48bb;
$custom-light: #817bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b48bb",
  "rgb": {
    "r": 59,
    "g": 72,
    "b": 187
  },
  "hsl": {
    "h": 233.906,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4637,
    "c": 0.17947,
    "h": 272.3
  },
  "luminance": 0.09152
}

Semantic roles & 50–950 ramp

primary

#3B48BB

secondary

#C8C28A

accent

#CD4CDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3B48BB

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

Preview Lab → · Contrast checker → · Palette generator →