#3941CB#3941CB

#3941CB is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.5% C 0.209 H 272.4°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#3941CB
RGB	rgb(57, 65, 203)
HSL	hsl(237, 58%, 51%)
HSV	hsv(237, 72%, 80%)
CMYK	cmyk(71.9%, 68%, 0%, 20.4%)
CIE-LAB	lab(35.91, 42.52, -72.12)
CIE-LCH	lch(35.91, 83.72, 300.52°)
OKLab	oklab(46.5% 0.0088 -0.2086)
OKLCH	oklch(46.5% 0.209 272.4)
XYZ	xyz(14.3535, 8.9608, 57.4615)
Luminance	0.0896 (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

#3941CB #CBC339

analogous

#398ACB #3941CB #7A39CB

triadic

#3941CB #CB3941 #41CB39

tetradic

#3941CB #CB398A #CBC339 #39CB7A

square

#3941CB #CB398A #CBC339 #39CB7A

split-complementary

#3941CB #CB7A39 #8ACB39

monochromatic

#1D216D #29309D #3941CB #6970D8 #9A9EE4

Accessibility & contrast

On white

7.52

#3941CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3941CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941CB

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941CB	#FFFFFF	#000000	##FFFFFF
##3941CB	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCF

Deuteranopia (green-blind)

#004EC8

Tritanopia (blue-blind)

#006681

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3941cb;
/* rgb */ color: rgb(57, 65, 203);
/* oklch */ color: oklch(46.5% 0.209 272.4);

Tailwind

colors: {
  custom: {
    50: '#8476dc',
    500: '#3941cb',
    950: '#000000',
  },
}

SCSS

$custom: #3941cb;
$custom-light: #8476dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3941cb",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 203
  },
  "hsl": {
    "h": 236.712,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46499,
    "c": 0.20875,
    "h": 272.4
  },
  "luminance": 0.08962
}

Semantic roles & 50–950 ramp

primary

#3941CB

secondary

#D0CD90

accent

#D946E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3941CB

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

Preview Lab → · Contrast checker → · Palette generator →