#3941B3#3941B3

#3941B3 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.3% C 0.178 H 273.5°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3941B3
RGB	rgb(57, 65, 179)
HSL	hsl(236, 52%, 46%)
HSV	hsv(236, 68%, 70%)
CMYK	cmyk(68.2%, 63.7%, 0%, 29.8%)
CIE-LAB	lab(33.78, 34.23, -61.52)
CIE-LCH	lch(33.78, 70.40, 299.09°)
OKLab	oklab(44.3% 0.0109 -0.1775)
OKLCH	oklch(44.3% 0.178 273.5)
XYZ	xyz(11.7116, 7.9040, 43.5475)
Luminance	0.0790 (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

#3941B3 #B3AB39

analogous

#397EB3 #3941B3 #6E39B3

triadic

#3941B3 #B33941 #41B339

tetradic

#3941B3 #B3397E #B3AB39 #39B36E

square

#3941B3 #B3397E #B3AB39 #39B36E

split-complementary

#3941B3 #B36E39 #7EB339

monochromatic

#1B1F56 #2A3085 #3941B3 #5E65CC #8C91DA

Accessibility & contrast

On white

8.14

#3941B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3941B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941B3

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941B3	#FFFFFF	#000000	##FFFFFF
##3941B3	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#005E74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3941b3;
/* rgb */ color: rgb(57, 65, 179);
/* oklch */ color: oklch(44.3% 0.178 273.5);

Tailwind

colors: {
  custom: {
    50: '#7f76cb',
    500: '#3941b3',
    950: '#000000',
  },
}

SCSS

$custom: #3941b3;
$custom-light: #7f76cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3941b3",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 179
  },
  "hsl": {
    "h": 236.066,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44298,
    "c": 0.17785,
    "h": 273.5
  },
  "luminance": 0.07905
}

Semantic roles & 50–950 ramp

primary

#3941B3

secondary

#C5C183

accent

#D24DDB

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3941B3

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

Preview Lab → · Contrast checker → · Palette generator →