#3941B1#3941B1

#3941B1 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.175 H 273.6°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#3941B1
RGB	rgb(57, 65, 177)
HSL	hsl(236, 51%, 46%)
HSV	hsv(236, 68%, 69%)
CMYK	cmyk(67.8%, 63.3%, 0%, 30.6%)
CIE-LAB	lab(33.61, 33.53, -60.61)
CIE-LCH	lch(33.61, 69.27, 298.95°)
OKLab	oklab(44.12% 0.011 -0.1748)
OKLCH	oklch(44.12% 0.175 273.6)
XYZ	xyz(11.5108, 7.8237, 42.4900)
Luminance	0.0783 (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

#3941B1 #B1A939

analogous

#397DB1 #3941B1 #6D39B1

triadic

#3941B1 #B13941 #41B139

tetradic

#3941B1 #B1397D #B1A939 #39B16D

square

#3941B1 #B1397D #B1A939 #39B16D

split-complementary

#3941B1 #B16D39 #7DB139

monochromatic

#1B1F54 #2A3083 #3941B1 #5D64CB #8B90DA

Accessibility & contrast

On white

8.19

#3941B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3941B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941B1

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941B1	#FFFFFF	#000000	##FFFFFF
##3941B1	1.00	8.19	2.57	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B5

Deuteranopia (green-blind)

#004AAF

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3941b1;
/* rgb */ color: rgb(57, 65, 177);
/* oklch */ color: oklch(44.1% 0.175 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f75c9',
    500: '#3941b1',
    950: '#000000',
  },
}

SCSS

$custom: #3941b1;
$custom-light: #7f75c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3941b1",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 177
  },
  "hsl": {
    "h": 236,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44122,
    "c": 0.17519,
    "h": 273.6
  },
  "luminance": 0.07825
}

Semantic roles & 50–950 ramp

primary

#3941B1

secondary

#C4C082

accent

#D14DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3941B1

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

Preview Lab → · Contrast checker → · Palette generator →