#3942B4#3942B4

#3942B4 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.6% C 0.178 H 273.2°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3942B4
RGB	rgb(57, 66, 180)
HSL	hsl(236, 52%, 46%)
HSV	hsv(236, 68%, 71%)
CMYK	cmyk(68.3%, 63.3%, 0%, 29.4%)
CIE-LAB	lab(34.11, 33.95, -61.58)
CIE-LCH	lch(34.11, 70.32, 298.86°)
OKLab	oklab(44.56% 0.0101 -0.1777)
OKLCH	oklch(44.56% 0.178 273.2)
XYZ	xyz(11.8710, 8.0605, 44.1014)
Luminance	0.0806 (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

#3942B4 #B4AB39

analogous

#3980B4 #3942B4 #6E39B4

triadic

#3942B4 #B43942 #42B439

tetradic

#3942B4 #B43980 #B4AB39 #39B46E

square

#3942B4 #B43980 #B4AB39 #39B46E

split-complementary

#3942B4 #B46E39 #80B439

monochromatic

#1C2057 #2A3186 #3942B4 #5E66CC #8D92DB

Accessibility & contrast

On white

8.04

#3942B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3942B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942B4

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942B4	#FFFFFF	#000000	##FFFFFF
##3942B4	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#004BB2

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3942b4;
/* rgb */ color: rgb(57, 66, 180);
/* oklch */ color: oklch(44.6% 0.178 273.2);

Tailwind

colors: {
  custom: {
    50: '#7f76cb',
    500: '#3942b4',
    950: '#000000',
  },
}

SCSS

$custom: #3942b4;
$custom-light: #7f76cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3942b4",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 180
  },
  "hsl": {
    "h": 235.61,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44564,
    "c": 0.17797,
    "h": 273.2
  },
  "luminance": 0.08062
}

Semantic roles & 50–950 ramp

primary

#3942B4

secondary

#C5C083

accent

#D14CDB

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3942B4

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

Preview Lab → · Contrast checker → · Palette generator →