#3943CA#3943CA

#3943CA is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 46.7% C 0.205 H 272.1°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#3943CA
RGB	rgb(57, 67, 202)
HSL	hsl(236, 58%, 51%)
HSV	hsv(236, 72%, 79%)
CMYK	cmyk(71.8%, 66.8%, 0%, 20.8%)
CIE-LAB	lab(36.27, 40.97, -70.96)
CIE-LCH	lch(36.27, 81.93, 300.00°)
OKLab	oklab(46.73% 0.0077 -0.2051)
OKLCH	oklch(46.73% 0.205 272.1)
XYZ	xyz(14.3516, 9.1470, 56.8749)
Luminance	0.0915 (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

#3943CA #CAC039

analogous

#398BCA #3943CA #7739CA

triadic

#3943CA #CA3943 #43CA39

tetradic

#3943CA #CA398B #CAC039 #39CA77

square

#3943CA #CA398B #CAC039 #39CA77

split-complementary

#3943CA #CA7739 #8BCA39

monochromatic

#1D226C #2A329C #3943CA #6971D7 #9A9FE4

Accessibility & contrast

On white

7.42

#3943CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#3943CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943CA

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943CA	#FFFFFF	#000000	##FFFFFF
##3943CA	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCE

Deuteranopia (green-blind)

#004FC7

Tritanopia (blue-blind)

#006781

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3943ca;
/* rgb */ color: rgb(57, 67, 202);
/* oklch */ color: oklch(46.7% 0.205 272.1);

Tailwind

colors: {
  custom: {
    50: '#8477db',
    500: '#3943ca',
    950: '#000000',
  },
}

SCSS

$custom: #3943ca;
$custom-light: #8477db;
$custom-dark: #000000;

JSON

{
  "hex": "#3943ca",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 202
  },
  "hsl": {
    "h": 235.862,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4673,
    "c": 0.20528,
    "h": 272.1
  },
  "luminance": 0.09148
}

Semantic roles & 50–950 ramp

primary

#3943CA

secondary

#D0CB8F

accent

#D647E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3943CA

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

Preview Lab → · Contrast checker → · Palette generator →