#3949A3#3949A3

#3949A3 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.146 H 271.6°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3949A3
RGB	rgb(57, 73, 163)
HSL	hsl(231, 48%, 43%)
HSV	hsv(231, 65%, 64%)
CMYK	cmyk(65%, 55.2%, 0%, 36.1%)
CIE-LAB	lab(34.56, 23.35, -50.72)
CIE-LCH	lch(34.56, 55.83, 294.72°)
OKLab	oklab(44.48% 0.0041 -0.1457)
OKLCH	oklch(44.48% 0.146 271.6)
XYZ	xyz(10.6785, 8.2784, 35.6784)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949A3 #A39339

analogous

#397EA3 #3949A3 #5E39A3

triadic

#3949A3 #A33949 #49A339

tetradic

#3949A3 #A3397E #A39339 #39A35E

square

#3949A3 #A3397E #A39339 #39A35E

split-complementary

#3949A3 #A35E39 #7EA339

monochromatic

#192048 #293576 #3949A3 #5566C4 #838FD4

Accessibility & contrast

On white

7.91

#3949A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3949A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949A3

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949A3	#FFFFFF	#000000	##FFFFFF
##3949A3	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0456A6

Deuteranopia (green-blind)

#004DA1

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3949a3;
/* rgb */ color: rgb(57, 73, 163);
/* oklch */ color: oklch(44.5% 0.146 271.6);

Tailwind

colors: {
  custom: {
    50: '#7b7bbf',
    500: '#3949a3',
    950: '#000000',
  },
}

SCSS

$custom: #3949a3;
$custom-light: #7b7bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3949a3",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 163
  },
  "hsl": {
    "h": 230.943,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44477,
    "c": 0.14575,
    "h": 271.6
  },
  "luminance": 0.08279
}

Semantic roles & 50–950 ramp

primary

#3949A3

secondary

#BDB37A

accent

#C350D8

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3949A3

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

Preview Lab → · Contrast checker → · Palette generator →