#3940CA#3940CA

#3940CA is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.2% C 0.209 H 272.6°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#3940CA
RGB	rgb(57, 64, 202)
HSL	hsl(237, 58%, 51%)
HSV	hsv(237, 72%, 79%)
CMYK	cmyk(71.8%, 68.3%, 0%, 20.8%)
CIE-LAB	lab(35.60, 42.78, -72.06)
CIE-LCH	lch(35.60, 83.80, 300.70°)
OKLab	oklab(46.24% 0.0095 -0.2084)
OKLCH	oklch(46.24% 0.209 272.6)
XYZ	xyz(14.1778, 8.7995, 56.8169)
Luminance	0.0880 (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

#3940CA #CAC339

analogous

#3989CA #3940CA #7A39CA

triadic

#3940CA #CA3940 #40CA39

tetradic

#3940CA #CA3989 #CAC339 #39CA7A

square

#3940CA #CA3989 #CAC339 #39CA7A

split-complementary

#3940CA #CA7A39 #89CA39

monochromatic

#1D216C #2A2F9C #3940CA #696FD7 #9A9DE4

Accessibility & contrast

On white

7.61

#3940CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3940CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940CA

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940CA	#FFFFFF	#000000	##FFFFFF
##3940CA	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCE

Deuteranopia (green-blind)

#004DC7

Tritanopia (blue-blind)

#006680

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3940ca;
/* rgb */ color: rgb(57, 64, 202);
/* oklch */ color: oklch(46.2% 0.209 272.6);

Tailwind

colors: {
  custom: {
    50: '#8475db',
    500: '#3940ca',
    950: '#000000',
  },
}

SCSS

$custom: #3940ca;
$custom-light: #8475db;
$custom-dark: #000000;

JSON

{
  "hex": "#3940ca",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 202
  },
  "hsl": {
    "h": 237.103,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.46244,
    "c": 0.20859,
    "h": 272.6
  },
  "luminance": 0.08801
}

Semantic roles & 50–950 ramp

primary

#3940CA

secondary

#D0CC8F

accent

#DA47E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3940CA

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

Preview Lab → · Contrast checker → · Palette generator →