#3949B4#3949B4

#3949B4 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.8% C 0.169 H 271.5°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#3949B4
RGB	rgb(57, 73, 180)
HSL	hsl(232, 52%, 46%)
HSV	hsv(232, 68%, 71%)
CMYK	cmyk(68.3%, 59.4%, 0%, 29.4%)
CIE-LAB	lab(35.85, 29.46, -58.75)
CIE-LCH	lch(35.85, 65.72, 296.63°)
OKLab	oklab(45.85% 0.0045 -0.1693)
OKLCH	oklch(45.85% 0.169 271.5)
XYZ	xyz(12.3053, 8.9291, 44.2462)
Luminance	0.0893 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3949B4 #B4A439

analogous

#3987B4 #3949B4 #6739B4

triadic

#3949B4 #B43949 #49B439

tetradic

#3949B4 #B43987 #B4A439 #39B467

square

#3949B4 #B43987 #B4A439 #39B467

split-complementary

#3949B4 #B46739 #87B439

monochromatic

#1C2357 #2A3686 #3949B4 #5E6CCC #8D97DB

Accessibility & contrast

On white

7.54

#3949B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3949B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3949B4

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3949B4	#FFFFFF	#000000	##FFFFFF
##3949B4	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB8

Deuteranopia (green-blind)

#004FB2

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3949b4;
/* rgb */ color: rgb(57, 73, 180);
/* oklch */ color: oklch(45.8% 0.169 271.5);

Tailwind

colors: {
  custom: {
    50: '#7f7bcb',
    500: '#3949b4',
    950: '#000000',
  },
}

SCSS

$custom: #3949b4;
$custom-light: #7f7bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3949b4",
  "rgb": {
    "r": 57,
    "g": 73,
    "b": 180
  },
  "hsl": {
    "h": 232.195,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.45848,
    "c": 0.16936,
    "h": 271.5
  },
  "luminance": 0.0893
}

Semantic roles & 50–950 ramp

primary

#3949B4

secondary

#C5BD83

accent

#C94CDB

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3949B4

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

Preview Lab → · Contrast checker → · Palette generator →