#3941B2#3941B2

#3941B2 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.2% C 0.177 H 273.5°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#3941B2
RGB	rgb(57, 65, 178)
HSL	hsl(236, 51%, 46%)
HSV	hsv(236, 68%, 70%)
CMYK	cmyk(68%, 63.5%, 0%, 30.2%)
CIE-LAB	lab(33.70, 33.88, -61.07)
CIE-LCH	lch(33.70, 69.84, 299.02°)
OKLab	oklab(44.21% 0.0109 -0.1762)
OKLCH	oklch(44.21% 0.177 273.5)
XYZ	xyz(11.6108, 7.8637, 43.0168)
Luminance	0.0786 (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

#3941B2 #B2AA39

analogous

#397DB2 #3941B2 #6D39B2

triadic

#3941B2 #B23941 #41B239

tetradic

#3941B2 #B2397D #B2AA39 #39B26D

square

#3941B2 #B2397D #B2AA39 #39B26D

split-complementary

#3941B2 #B26D39 #7DB239

monochromatic

#1B1F55 #2A3084 #3941B2 #5D64CB #8B91DA

Accessibility & contrast

On white

8.16

#3941B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3941B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941B2

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941B2	#FFFFFF	#000000	##FFFFFF
##3941B2	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#004AB0

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3941b2;
/* rgb */ color: rgb(57, 65, 178);
/* oklch */ color: oklch(44.2% 0.177 273.5);

Tailwind

colors: {
  custom: {
    50: '#7f75ca',
    500: '#3941b2',
    950: '#000000',
  },
}

SCSS

$custom: #3941b2;
$custom-light: #7f75ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3941b2",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 178
  },
  "hsl": {
    "h": 236.033,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.4421,
    "c": 0.17653,
    "h": 273.5
  },
  "luminance": 0.07865
}

Semantic roles & 50–950 ramp

primary

#3941B2

secondary

#C4C082

accent

#D24DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3941B2

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

Preview Lab → · Contrast checker → · Palette generator →