#3949BA#3949BA

#3949BA is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.4% C 0.177 H 271.4°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#3949BA
RGB	rgb(57, 73, 186)
HSL	hsl(233, 53%, 48%)
HSV	hsv(233, 69%, 73%)
CMYK	cmyk(69.4%, 60.8%, 0%, 27.1%)
CIE-LAB	lab(36.33, 31.61, -61.50)
CIE-LCH	lch(36.33, 69.15, 297.20°)
OKLab	oklab(46.35% 0.0045 -0.1774)
OKLCH	oklch(46.35% 0.177 271.4)
XYZ	xyz(12.9298, 9.1789, 47.5351)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949BA #BAAA39

analogous

#398ABA #3949BA #6939BA

triadic

#3949BA #BA3949 #49BA39

tetradic

#3949BA #BA398A #BAAA39 #39BA69

square

#3949BA #BA398A #BAAA39 #39BA69

split-complementary

#3949BA #BA6939 #8ABA39

monochromatic

#1C245C #2B378B #3949BA #616FCF #909ADD

Accessibility & contrast

On white

7.40

#3949BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3949BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949BA

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949BA	#FFFFFF	#000000	##FFFFFF
##3949BA	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBE

Deuteranopia (green-blind)

#0050B8

Tritanopia (blue-blind)

#00657A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3949ba;
/* rgb */ color: rgb(57, 73, 186);
/* oklch */ color: oklch(46.4% 0.177 271.4);

Tailwind

colors: {
  custom: {
    50: '#807bd0',
    500: '#3949ba',
    950: '#000000',
  },
}

SCSS

$custom: #3949ba;
$custom-light: #807bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3949ba",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 186
  },
  "hsl": {
    "h": 232.558,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.46353,
    "c": 0.17746,
    "h": 271.4
  },
  "luminance": 0.0918
}

Semantic roles & 50–950 ramp

primary

#3949BA

secondary

#C8C087

accent

#CA4BDC

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3949BA

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

Preview Lab → · Contrast checker → · Palette generator →