#3949C1#3949C1

#3949C1 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 47.0% C 0.187 H 271.3°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#3949C1
RGB	rgb(57, 73, 193)
HSL	hsl(233, 54%, 49%)
HSV	hsv(233, 70%, 76%)
CMYK	cmyk(70.5%, 62.2%, 0%, 24.3%)
CIE-LAB	lab(36.90, 34.09, -64.67)
CIE-LCH	lch(36.90, 73.11, 297.80°)
OKLab	oklab(46.95% 0.0043 -0.1867)
OKLCH	oklch(46.95% 0.187 271.3)
XYZ	xyz(13.6923, 9.4838, 51.5507)
Luminance	0.0949 (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

#3949C1 #C1B139

analogous

#398DC1 #3949C1 #6D39C1

triadic

#3949C1 #C13949 #49C139

tetradic

#3949C1 #C1398D #C1B139 #39C16D

square

#3949C1 #C1398D #C1B139 #39C16D

split-complementary

#3949C1 #C16D39 #8DC139

monochromatic

#1D2563 #2B3792 #3949C1 #6672D2 #959EE0

Accessibility & contrast

On white

7.25

#3949C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3949C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949C1

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949C1	#FFFFFF	#000000	##FFFFFF
##3949C1	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC5

Deuteranopia (green-blind)

#0051BF

Tritanopia (blue-blind)

#00687E

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3949c1;
/* rgb */ color: rgb(57, 73, 193);
/* oklch */ color: oklch(47.0% 0.187 271.3);

Tailwind

colors: {
  custom: {
    50: '#817bd5',
    500: '#3949c1',
    950: '#000000',
  },
}

SCSS

$custom: #3949c1;
$custom-light: #817bd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3949c1",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 193
  },
  "hsl": {
    "h": 232.941,
    "s": 54.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.46954,
    "c": 0.18675,
    "h": 271.3
  },
  "luminance": 0.09485
}

Semantic roles & 50–950 ramp

primary

#3949C1

secondary

#CBC38B

accent

#CC4ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3949C1

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

Preview Lab → · Contrast checker → · Palette generator →