#3942AA#3942AA

#3942AA is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.7% C 0.165 H 273.6°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3942AA
RGB	rgb(57, 66, 170)
HSL	hsl(235, 50%, 45%)
HSV	hsv(235, 66%, 67%)
CMYK	cmyk(66.5%, 61.2%, 0%, 33.3%)
CIE-LAB	lab(33.28, 30.42, -56.98)
CIE-LCH	lch(33.28, 64.59, 298.10°)
OKLab	oklab(43.7% 0.0104 -0.1642)
OKLCH	oklch(43.7% 0.165 273.6)
XYZ	xyz(10.8888, 7.6676, 38.9286)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3942AA #AAA139

analogous

#397BAA #3942AA #6839AA

triadic

#3942AA #AA3942 #42AA39

tetradic

#3942AA #AA397B #AAA139 #39AA68

square

#3942AA #AA397B #AAA139 #39AA68

split-complementary

#3942AA #AA6839 #7BAA39

monochromatic

#1A1E4E #2A307C #3942AA #5962C7 #878DD7

Accessibility & contrast

On white

8.29

#3942AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3942AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942AA

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942AA	#FFFFFF	#000000	##FFFFFF
##3942AA	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AD

Deuteranopia (green-blind)

#0049A8

Tritanopia (blue-blind)

#005C6F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3942aa;
/* rgb */ color: rgb(57, 66, 170);
/* oklch */ color: oklch(43.7% 0.165 273.6);

Tailwind

colors: {
  custom: {
    50: '#7d76c4',
    500: '#3942aa',
    950: '#000000',
  },
}

SCSS

$custom: #3942aa;
$custom-light: #7d76c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3942aa",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 170
  },
  "hsl": {
    "h": 235.221,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43697,
    "c": 0.16452,
    "h": 273.6
  },
  "luminance": 0.07669
}

Semantic roles & 50–950 ramp

primary

#3942AA

secondary

#C1BB7E

accent

#CE4ED9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3942AA

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

Preview Lab → · Contrast checker → · Palette generator →