#3942BA#3942BA

#3942BA is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.1% C 0.186 H 273.0°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#3942BA
RGB	rgb(57, 66, 186)
HSL	hsl(236, 53%, 48%)
HSV	hsv(236, 69%, 73%)
CMYK	cmyk(69.4%, 64.5%, 0%, 27.1%)
CIE-LAB	lab(34.62, 36.05, -64.29)
CIE-LCH	lch(34.62, 73.71, 299.28°)
OKLab	oklab(45.1% 0.0097 -0.1856)
OKLCH	oklch(45.1% 0.186 273)
XYZ	xyz(12.4955, 8.3103, 47.3904)
Luminance	0.0831 (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

#3942BA #BAB139

analogous

#3982BA #3942BA #7139BA

triadic

#3942BA #BA3942 #42BA39

tetradic

#3942BA #BA3982 #BAB139 #39BA71

square

#3942BA #BA3982 #BAB139 #39BA71

split-complementary

#3942BA #BA7139 #82BA39

monochromatic

#1C215C #2B318B #3942BA #6169CF #9096DD

Accessibility & contrast

On white

7.89

#3942BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3942BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942BA

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942BA	#FFFFFF	#000000	##FFFFFF
##3942BA	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3942ba;
/* rgb */ color: rgb(57, 66, 186);
/* oklch */ color: oklch(45.1% 0.186 273.0);

Tailwind

colors: {
  custom: {
    50: '#8076d0',
    500: '#3942ba',
    950: '#000000',
  },
}

SCSS

$custom: #3942ba;
$custom-light: #8076d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3942ba",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 186
  },
  "hsl": {
    "h": 235.814,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45098,
    "c": 0.18588,
    "h": 273
  },
  "luminance": 0.08311
}

Semantic roles & 50–950 ramp

primary

#3942BA

secondary

#C8C387

accent

#D24BDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3942BA

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

Preview Lab → · Contrast checker → · Palette generator →