#3942A5#3942A5

#3942A5 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.158 H 273.8°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#3942A5
RGB	rgb(57, 66, 165)
HSL	hsl(235, 49%, 44%)
HSV	hsv(235, 65%, 65%)
CMYK	cmyk(65.5%, 60%, 0%, 35.3%)
CIE-LAB	lab(32.88, 28.65, -54.64)
CIE-LCH	lch(32.88, 61.69, 297.67°)
OKLab	oklab(43.28% 0.0106 -0.1573)
OKLCH	oklch(43.28% 0.158 273.8)
XYZ	xyz(10.4248, 7.4820, 36.4848)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3942A5 #A59C39

analogous

#3978A5 #3942A5 #6639A5

triadic

#3942A5 #A53942 #42A539

tetradic

#3942A5 #A53978 #A59C39 #39A566

square

#3942A5 #A53978 #A59C39 #39A566

split-complementary

#3942A5 #A56639 #78A539

monochromatic

#1A1E4A #293078 #3942A5 #5660C5 #848BD4

Accessibility & contrast

On white

8.41

#3942A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3942A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942A5

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942A5	#FFFFFF	#000000	##FFFFFF
##3942A5	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A8

Deuteranopia (green-blind)

#0049A3

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3942a5;
/* rgb */ color: rgb(57, 66, 165);
/* oklch */ color: oklch(43.3% 0.158 273.8);

Tailwind

colors: {
  custom: {
    50: '#7c76c0',
    500: '#3942a5',
    950: '#000000',
  },
}

SCSS

$custom: #3942a5;
$custom-light: #7c76c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3942a5",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 165
  },
  "hsl": {
    "h": 235,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43275,
    "c": 0.15765,
    "h": 273.8
  },
  "luminance": 0.07483
}

Semantic roles & 50–950 ramp

primary

#3942A5

secondary

#BEB97B

accent

#CD50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3942A5

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

Preview Lab → · Contrast checker → · Palette generator →