#3942A4#3942A4

#3942A4 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.2% C 0.156 H 273.9°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#3942A4
RGB	rgb(57, 66, 164)
HSL	hsl(235, 48%, 43%)
HSV	hsv(235, 65%, 64%)
CMYK	cmyk(65.2%, 59.8%, 0%, 35.7%)
CIE-LAB	lab(32.80, 28.30, -54.17)
CIE-LCH	lch(32.80, 61.11, 297.58°)
OKLab	oklab(43.19% 0.0106 -0.1559)
OKLCH	oklch(43.19% 0.156 273.9)
XYZ	xyz(10.3342, 7.4457, 36.0073)
Luminance	0.0745 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3942A4 #A49B39

analogous

#3977A4 #3942A4 #6539A4

triadic

#3942A4 #A43942 #42A439

tetradic

#3942A4 #A43977 #A49B39 #39A465

square

#3942A4 #A43977 #A49B39 #39A465

split-complementary

#3942A4 #A46539 #77A439

monochromatic

#191D49 #293077 #3942A4 #565FC4 #838AD4

Accessibility & contrast

On white

8.44

#3942A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3942A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942A4

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942A4	#FFFFFF	#000000	##FFFFFF
##3942A4	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A7

Deuteranopia (green-blind)

#0048A2

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3942a4;
/* rgb */ color: rgb(57, 66, 164);
/* oklch */ color: oklch(43.2% 0.156 273.9);

Tailwind

colors: {
  custom: {
    50: '#7c76c0',
    500: '#3942a4',
    950: '#000000',
  },
}

SCSS

$custom: #3942a4;
$custom-light: #7c76c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3942a4",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 164
  },
  "hsl": {
    "h": 234.953,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.43192,
    "c": 0.15627,
    "h": 273.9
  },
  "luminance": 0.07447
}

Semantic roles & 50–950 ramp

primary

#3942A4

secondary

#BEB87B

accent

#CD50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3942A4

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

Preview Lab → · Contrast checker → · Palette generator →