#3949B3#3949B3

#3949B3 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.8% C 0.168 H 271.5°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#3949B3
RGB	rgb(57, 73, 179)
HSL	hsl(232, 52%, 46%)
HSV	hsv(232, 68%, 70%)
CMYK	cmyk(68.2%, 59.2%, 0%, 29.8%)
CIE-LAB	lab(35.77, 29.10, -58.28)
CIE-LCH	lch(35.77, 65.15, 296.54°)
OKLab	oklab(45.77% 0.0045 -0.1679)
OKLCH	oklch(45.77% 0.168 271.5)
XYZ	xyz(12.2038, 8.8885, 43.7116)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949B3 #B3A339

analogous

#3986B3 #3949B3 #6639B3

triadic

#3949B3 #B33949 #49B339

tetradic

#3949B3 #B33986 #B3A339 #39B366

square

#3949B3 #B33986 #B3A339 #39B366

split-complementary

#3949B3 #B36639 #86B339

monochromatic

#1B2356 #2A3685 #3949B3 #5E6CCC #8C96DA

Accessibility & contrast

On white

7.56

#3949B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3949B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949B3

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949B3	#FFFFFF	#000000	##FFFFFF
##3949B3	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB7

Deuteranopia (green-blind)

#004FB1

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3949b3;
/* rgb */ color: rgb(57, 73, 179);
/* oklch */ color: oklch(45.8% 0.168 271.5);

Tailwind

colors: {
  custom: {
    50: '#7e7bcb',
    500: '#3949b3',
    950: '#000000',
  },
}

SCSS

$custom: #3949b3;
$custom-light: #7e7bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3949b3",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 179
  },
  "hsl": {
    "h": 232.131,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.45765,
    "c": 0.168,
    "h": 271.5
  },
  "luminance": 0.0889
}

Semantic roles & 50–950 ramp

primary

#3949B3

secondary

#C5BC83

accent

#C84DDB

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3949B3

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

Preview Lab → · Contrast checker → · Palette generator →