#3940AA#3940AA

#3940AA is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.3% C 0.167 H 274.2°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#3940AA
RGB	rgb(57, 64, 170)
HSL	hsl(236, 50%, 45%)
HSV	hsv(236, 66%, 67%)
CMYK	cmyk(66.5%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(32.78, 31.71, -57.79)
CIE-LCH	lch(32.78, 65.92, 298.75°)
OKLab	oklab(43.33% 0.0121 -0.1666)
OKLCH	oklch(43.33% 0.167 274.2)
XYZ	xyz(10.7740, 7.4380, 38.8903)
Luminance	0.0744 (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

#3940AA #AAA339

analogous

#3979AA #3940AA #6B39AA

triadic

#3940AA #AA3940 #40AA39

tetradic

#3940AA #AA3979 #AAA339 #39AA6B

square

#3940AA #AA3979 #AAA339 #39AA6B

split-complementary

#3940AA #AA6B39 #79AA39

monochromatic

#1A1D4E #2A2F7C #3940AA #5960C7 #878CD7

Accessibility & contrast

On white

8.44

#3940AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3940AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940AA

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940AA	#FFFFFF	#000000	##FFFFFF
##3940AA	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AD

Deuteranopia (green-blind)

#0048A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3940aa;
/* rgb */ color: rgb(57, 64, 170);
/* oklch */ color: oklch(43.3% 0.167 274.2);

Tailwind

colors: {
  custom: {
    50: '#7d75c4',
    500: '#3940aa',
    950: '#000000',
  },
}

SCSS

$custom: #3940aa;
$custom-light: #7d75c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3940aa",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 236.283,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43331,
    "c": 0.16702,
    "h": 274.2
  },
  "luminance": 0.07439
}

Semantic roles & 50–950 ramp

primary

#3940AA

secondary

#C1BD7E

accent

#D14ED9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3940AA

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

Preview Lab → · Contrast checker → · Palette generator →