#3940BA#3940BA

#3940BA is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.8% C 0.188 H 273.4°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#3940BA
RGB	rgb(57, 64, 186)
HSL	hsl(237, 53%, 48%)
HSV	hsv(237, 69%, 73%)
CMYK	cmyk(69.4%, 65.6%, 0%, 27.1%)
CIE-LAB	lab(34.15, 37.29, -65.06)
CIE-LCH	lch(34.15, 74.99, 299.82°)
OKLab	oklab(44.75% 0.0111 -0.1879)
OKLCH	oklch(44.75% 0.188 273.4)
XYZ	xyz(12.3807, 8.0806, 47.3521)
Luminance	0.0808 (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

#3940BA #BAB339

analogous

#3981BA #3940BA #7239BA

triadic

#3940BA #BA3940 #40BA39

tetradic

#3940BA #BA3981 #BAB339 #39BA72

square

#3940BA #BA3981 #BAB339 #39BA72

split-complementary

#3940BA #BA7239 #81BA39

monochromatic

#1C205C #2B308B #3940BA #6167CF #9094DD

Accessibility & contrast

On white

8.03

#3940BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3940BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940BA

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940BA	#FFFFFF	#000000	##FFFFFF
##3940BA	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BE

Deuteranopia (green-blind)

#004AB8

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3940ba;
/* rgb */ color: rgb(57, 64, 186);
/* oklch */ color: oklch(44.8% 0.188 273.4);

Tailwind

colors: {
  custom: {
    50: '#8175d0',
    500: '#3940ba',
    950: '#000000',
  },
}

SCSS

$custom: #3940ba;
$custom-light: #8175d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3940ba",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 186
  },
  "hsl": {
    "h": 236.744,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44754,
    "c": 0.18823,
    "h": 273.4
  },
  "luminance": 0.08082
}

Semantic roles & 50–950 ramp

primary

#3940BA

secondary

#C8C487

accent

#D54BDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3940BA

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

Preview Lab → · Contrast checker → · Palette generator →