#405EB4#405EB4

#405EB4 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.5% C 0.141 H 266.9°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#405EB4
RGB	rgb(64, 94, 180)
HSL	hsl(224, 48%, 48%)
HSV	hsv(224, 64%, 71%)
CMYK	cmyk(64.4%, 47.8%, 0%, 29.4%)
CIE-LAB	lab(41.83, 17.00, -49.06)
CIE-LCH	lch(41.83, 51.92, 289.11°)
OKLab	oklab(50.46% -0.0077 -0.1404)
OKLCH	oklch(50.46% 0.141 266.9)
XYZ	xyz(14.3524, 12.3894, 44.8062)
Luminance	0.1239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405EB4 #B49640

analogous

#4098B4 #405EB4 #5C40B4

triadic

#405EB4 #B4405E #5EB440

tetradic

#405EB4 #B44098 #B49640 #40B45C

square

#405EB4 #B44098 #B49640 #40B45C

split-complementary

#405EB4 #B45C40 #98B440

monochromatic

#202F5A #304687 #405EB4 #6881C9 #95A7D9

Accessibility & contrast

On white

6.04

#405EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#405EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405EB4

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405EB4	#FFFFFF	#000000	##FFFFFF
##405EB4	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3268B7

Deuteranopia (green-blind)

#1B5EB2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405eb4;
/* rgb */ color: rgb(64, 94, 180);
/* oklch */ color: oklch(50.5% 0.141 266.9);

Tailwind

colors: {
  custom: {
    50: '#808bcb',
    500: '#405eb4',
    950: '#000000',
  },
}

SCSS

$custom: #405eb4;
$custom-light: #808bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#405eb4",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 180
  },
  "hsl": {
    "h": 224.483,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.50458,
    "c": 0.14057,
    "h": 266.9
  },
  "luminance": 0.12391
}

Semantic roles & 50–950 ramp

primary

#405EB4

secondary

#C5B68B

accent

#B451D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405EB4

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

Preview Lab → · Contrast checker → · Palette generator →