#3941AA#3941AA

#3941AA is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.5% C 0.166 H 273.9°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#3941AA
RGB	rgb(57, 65, 170)
HSL	hsl(236, 50%, 45%)
HSV	hsv(236, 66%, 67%)
CMYK	cmyk(66.5%, 61.8%, 0%, 33.3%)
CIE-LAB	lab(33.03, 31.06, -57.39)
CIE-LCH	lch(33.03, 65.26, 298.43°)
OKLab	oklab(43.51% 0.0113 -0.1654)
OKLCH	oklch(43.51% 0.166 273.9)
XYZ	xyz(10.8309, 7.5518, 38.9093)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3941AA #AAA239

analogous

#397AAA #3941AA #6A39AA

triadic

#3941AA #AA3941 #41AA39

tetradic

#3941AA #AA397A #AAA239 #39AA6A

square

#3941AA #AA397A #AAA239 #39AA6A

split-complementary

#3941AA #AA6A39 #7AAA39

monochromatic

#1A1E4E #2A2F7C #3941AA #5961C7 #878CD7

Accessibility & contrast

On white

8.36

#3941AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3941AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941AA

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941AA	#FFFFFF	#000000	##FFFFFF
##3941AA	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AD

Deuteranopia (green-blind)

#0049A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3941aa;
/* rgb */ color: rgb(57, 65, 170);
/* oklch */ color: oklch(43.5% 0.166 273.9);

Tailwind

colors: {
  custom: {
    50: '#7d75c4',
    500: '#3941aa',
    950: '#000000',
  },
}

SCSS

$custom: #3941aa;
$custom-light: #7d75c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3941aa",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 170
  },
  "hsl": {
    "h": 235.752,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43513,
    "c": 0.16577,
    "h": 273.9
  },
  "luminance": 0.07553
}

Semantic roles & 50–950 ramp

primary

#3941AA

secondary

#C1BC7E

accent

#CF4ED9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3941AA

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

Preview Lab → · Contrast checker → · Palette generator →