#3942B5#3942B5

#3942B5 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.7% C 0.179 H 273.2°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3942B5
RGB	rgb(57, 66, 181)
HSL	hsl(236, 52%, 47%)
HSV	hsv(236, 69%, 71%)
CMYK	cmyk(68.5%, 63.5%, 0%, 29%)
CIE-LAB	lab(34.19, 34.30, -62.04)
CIE-LCH	lch(34.19, 70.89, 298.94°)
OKLab	oklab(44.65% 0.01 -0.179)
OKLCH	oklch(44.65% 0.179 273.2)
XYZ	xyz(11.9733, 8.1014, 44.6398)
Luminance	0.0810 (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

#3942B5 #B5AC39

analogous

#3980B5 #3942B5 #6E39B5

triadic

#3942B5 #B53942 #42B539

tetradic

#3942B5 #B53980 #B5AC39 #39B56E

square

#3942B5 #B53980 #B5AC39 #39B56E

split-complementary

#3942B5 #B56E39 #80B539

monochromatic

#1C2058 #2A3186 #3942B5 #5F67CD #8D93DB

Accessibility & contrast

On white

8.01

#3942B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3942B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942B5

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942B5	#FFFFFF	#000000	##FFFFFF
##3942B5	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#004BB3

Tritanopia (blue-blind)

#006075

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3942b5;
/* rgb */ color: rgb(57, 66, 181);
/* oklch */ color: oklch(44.7% 0.179 273.2);

Tailwind

colors: {
  custom: {
    50: '#7f76cc',
    500: '#3942b5',
    950: '#000000',
  },
}

SCSS

$custom: #3942b5;
$custom-light: #7f76cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3942b5",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 181
  },
  "hsl": {
    "h": 235.645,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44652,
    "c": 0.1793,
    "h": 273.2
  },
  "luminance": 0.08102
}

Semantic roles & 50–950 ramp

primary

#3942B5

secondary

#C6C184

accent

#D14CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3942B5

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

Preview Lab → · Contrast checker → · Palette generator →