#3949BC#3949BC

#3949BC is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.5% C 0.180 H 271.4°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#3949BC
RGB	rgb(57, 73, 188)
HSL	hsl(233, 53%, 48%)
HSV	hsv(233, 70%, 74%)
CMYK	cmyk(69.7%, 61.2%, 0%, 26.3%)
CIE-LAB	lab(36.49, 32.32, -62.41)
CIE-LCH	lch(36.49, 70.29, 297.38°)
OKLab	oklab(46.52% 0.0044 -0.1801)
OKLCH	oklch(46.52% 0.18 271.4)
XYZ	xyz(13.1439, 9.2645, 48.6627)
Luminance	0.0927 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949BC #BCAC39

analogous

#398ABC #3949BC #6B39BC

triadic

#3949BC #BC3949 #49BC39

tetradic

#3949BC #BC398A #BCAC39 #39BC6B

square

#3949BC #BC398A #BCAC39 #39BC6B

split-complementary

#3949BC #BC6B39 #8ABC39

monochromatic

#1D255E #2B378D #3949BC #6370D0 #929BDE

Accessibility & contrast

On white

7.36

#3949BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3949BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949BC

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949BC	#FFFFFF	#000000	##FFFFFF
##3949BC	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC0

Deuteranopia (green-blind)

#0050BA

Tritanopia (blue-blind)

#00667B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3949bc;
/* rgb */ color: rgb(57, 73, 188);
/* oklch */ color: oklch(46.5% 0.180 271.4);

Tailwind

colors: {
  custom: {
    50: '#807bd1',
    500: '#3949bc',
    950: '#000000',
  },
}

SCSS

$custom: #3949bc;
$custom-light: #807bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3949bc",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 188
  },
  "hsl": {
    "h": 232.672,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.46523,
    "c": 0.18012,
    "h": 271.4
  },
  "luminance": 0.09266
}

Semantic roles & 50–950 ramp

primary

#3949BC

secondary

#C9C188

accent

#CB4BDD

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3949BC

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

Preview Lab → · Contrast checker → · Palette generator →