#3942AD#3942AD

#3942AD is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.169 H 273.5°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3942AD
RGB	rgb(57, 66, 173)
HSL	hsl(235, 50%, 45%)
HSV	hsv(235, 67%, 68%)
CMYK	cmyk(67.1%, 61.8%, 0%, 32.2%)
CIE-LAB	lab(33.53, 31.48, -58.37)
CIE-LCH	lch(33.53, 66.32, 298.34°)
OKLab	oklab(43.95% 0.0104 -0.1683)
OKLCH	oklch(43.95% 0.169 273.5)
XYZ	xyz(11.1759, 7.7824, 40.4403)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.79

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3942AD #ADA439

analogous

#397CAD #3942AD #6A39AD

triadic

#3942AD #AD3942 #42AD39

tetradic

#3942AD #AD397C #ADA439 #39AD6A

square

#3942AD #AD397C #ADA439 #39AD6A

split-complementary

#3942AD #AD6A39 #7CAD39

monochromatic

#1B1F51 #2A307F #3942AD #5A63C9 #888FD8

Accessibility & contrast

On white

8.21

#3942AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3942AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942AD

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942AD	#FFFFFF	#000000	##FFFFFF
##3942AD	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B0

Deuteranopia (green-blind)

#004AAB

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3942ad;
/* rgb */ color: rgb(57, 66, 173);
/* oklch */ color: oklch(44.0% 0.169 273.5);

Tailwind

colors: {
  custom: {
    50: '#7e76c6',
    500: '#3942ad',
    950: '#000000',
  },
}

SCSS

$custom: #3942ad;
$custom-light: #7e76c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3942ad",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 173
  },
  "hsl": {
    "h": 235.345,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43954,
    "c": 0.1686,
    "h": 273.5
  },
  "luminance": 0.07783
}

Semantic roles & 50–950 ramp

primary

#3942AD

secondary

#C2BD80

accent

#CF4EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3942AD

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

Preview Lab → · Contrast checker → · Palette generator →