#3940AD#3940AD

#3940AD is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.6% C 0.171 H 274.0°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#3940AD
RGB	rgb(57, 64, 173)
HSL	hsl(236, 50%, 45%)
HSV	hsv(236, 67%, 68%)
CMYK	cmyk(67.1%, 63%, 0%, 32.2%)
CIE-LAB	lab(33.03, 32.76, -59.18)
CIE-LCH	lch(33.03, 67.64, 298.97°)
OKLab	oklab(43.59% 0.012 -0.1706)
OKLCH	oklch(43.59% 0.171 274)
XYZ	xyz(11.0611, 7.5528, 40.4020)
Luminance	0.0755 (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

#3940AD #ADA639

analogous

#397AAD #3940AD #6C39AD

triadic

#3940AD #AD3940 #40AD39

tetradic

#3940AD #AD397A #ADA639 #39AD6C

square

#3940AD #AD397A #ADA639 #39AD6C

split-complementary

#3940AD #AD6C39 #7AAD39

monochromatic

#1B1E51 #2A2F7F #3940AD #5A61C9 #888DD8

Accessibility & contrast

On white

8.36

#3940AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3940AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940AD

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940AD	#FFFFFF	#000000	##FFFFFF
##3940AD	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)

#0053B1

Deuteranopia (green-blind)

#0049AB

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3940ad;
/* rgb */ color: rgb(57, 64, 173);
/* oklch */ color: oklch(43.6% 0.171 274.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3940ad",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 173
  },
  "hsl": {
    "h": 236.379,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43592,
    "c": 0.17107,
    "h": 274
  },
  "luminance": 0.07554
}

Semantic roles & 50–950 ramp

primary

#3940AD

secondary

#C2BE80

accent

#D14EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3940AD

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

Preview Lab → · Contrast checker → · Palette generator →