#3941B9#3941B9

#3941B9 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.8% C 0.186 H 273.2°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3941B9
RGB	rgb(57, 65, 185)
HSL	hsl(236, 53%, 47%)
HSV	hsv(236, 69%, 73%)
CMYK	cmyk(69.2%, 64.9%, 0%, 27.5%)
CIE-LAB	lab(34.30, 36.32, -64.23)
CIE-LCH	lch(34.30, 73.79, 299.49°)
OKLab	oklab(44.84% 0.0105 -0.1855)
OKLCH	oklch(44.84% 0.186 273.2)
XYZ	xyz(12.3317, 8.1521, 46.8132)
Luminance	0.0815 (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

#3941B9 #B9B139

analogous

#3981B9 #3941B9 #7139B9

triadic

#3941B9 #B93941 #41B939

tetradic

#3941B9 #B93981 #B9B139 #39B971

square

#3941B9 #B93981 #B9B139 #39B971

split-complementary

#3941B9 #B97139 #81B939

monochromatic

#1C205B #2B318A #3941B9 #6168CE #9095DD

Accessibility & contrast

On white

7.98

#3941B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3941B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941B9

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941B9	#FFFFFF	#000000	##FFFFFF
##3941B9	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004BB7

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3941b9;
/* rgb */ color: rgb(57, 65, 185);
/* oklch */ color: oklch(44.8% 0.186 273.2);

Tailwind

colors: {
  custom: {
    50: '#8076cf',
    500: '#3941b9',
    950: '#000000',
  },
}

SCSS

$custom: #3941b9;
$custom-light: #8076cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3941b9",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 185
  },
  "hsl": {
    "h": 236.25,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44835,
    "c": 0.18576,
    "h": 273.2
  },
  "luminance": 0.08153
}

Semantic roles & 50–950 ramp

primary

#3941B9

secondary

#C8C386

accent

#D34BDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3941B9

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

Preview Lab → · Contrast checker → · Palette generator →