#3940AC#3940AC

#3940AC is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.5% C 0.170 H 274.1°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#3940AC
RGB	rgb(57, 64, 172)
HSL	hsl(236, 50%, 45%)
HSV	hsv(236, 67%, 67%)
CMYK	cmyk(66.9%, 62.8%, 0%, 32.5%)
CIE-LAB	lab(32.95, 32.41, -58.72)
CIE-LCH	lch(32.95, 67.07, 298.90°)
OKLab	oklab(43.51% 0.012 -0.1693)
OKLCH	oklch(43.51% 0.17 274.1)
XYZ	xyz(10.9647, 7.5142, 39.8943)
Luminance	0.0751 (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

#3940AC #ACA539

analogous

#3979AC #3940AC #6C39AC

triadic

#3940AC #AC3940 #40AC39

tetradic

#3940AC #AC3979 #ACA539 #39AC6C

square

#3940AC #AC3979 #ACA539 #39AC6C

split-complementary

#3940AC #AC6C39 #79AC39

monochromatic

#1B1E50 #2A2F7E #3940AC #5A61C8 #888DD8

Accessibility & contrast

On white

8.39

#3940AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3940AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940AC

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940AC	#FFFFFF	#000000	##FFFFFF
##3940AC	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AF

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3940ac;
/* rgb */ color: rgb(57, 64, 172);
/* oklch */ color: oklch(43.5% 0.170 274.1);

Tailwind

colors: {
  custom: {
    50: '#7e75c6',
    500: '#3940ac',
    950: '#000000',
  },
}

SCSS

$custom: #3940ac;
$custom-light: #7e75c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3940ac",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 172
  },
  "hsl": {
    "h": 236.348,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43505,
    "c": 0.16973,
    "h": 274.1
  },
  "luminance": 0.07515
}

Semantic roles & 50–950 ramp

primary

#3940AC

secondary

#C2BE7F

accent

#D14EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3940AC

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

Preview Lab → · Contrast checker → · Palette generator →