#405DB8#405DB8

#405DB8 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.5% C 0.147 H 267.6°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#405DB8
RGB	rgb(64, 93, 184)
HSL	hsl(226, 48%, 49%)
HSV	hsv(226, 65%, 72%)
CMYK	cmyk(65.2%, 49.5%, 0%, 27.8%)
CIE-LAB	lab(41.81, 19.07, -51.43)
CIE-LCH	lch(41.81, 54.85, 290.34°)
OKLab	oklab(50.53% -0.0062 -0.1473)
OKLCH	oklch(50.53% 0.147 267.6)
XYZ	xyz(14.6775, 12.3780, 46.9538)
Luminance	0.1238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DB8 #B89B40

analogous

#4099B8 #405DB8 #5F40B8

triadic

#405DB8 #B8405D #5DB840

tetradic

#405DB8 #B84099 #B89B40 #40B85F

square

#405DB8 #B84099 #B89B40 #40B85F

split-complementary

#405DB8 #B85F40 #99B840

monochromatic

#202F5D #30468B #405DB8 #6A81CB #97A8DB

Accessibility & contrast

On white

6.04

#405DB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#405DB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DB8

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DB8	#FFFFFF	#000000	##FFFFFF
##405DB8	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)

#2C68BB

Deuteranopia (green-blind)

#0C5EB6

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405db8;
/* rgb */ color: rgb(64, 93, 184);
/* oklch */ color: oklch(50.5% 0.147 267.6);

Tailwind

colors: {
  custom: {
    50: '#818ace',
    500: '#405db8',
    950: '#000000',
  },
}

SCSS

$custom: #405db8;
$custom-light: #818ace;
$custom-dark: #000000;

JSON

{
  "hex": "#405db8",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 184
  },
  "hsl": {
    "h": 225.5,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.50527,
    "c": 0.14748,
    "h": 267.6
  },
  "luminance": 0.12379
}

Semantic roles & 50–950 ramp

primary

#405DB8

secondary

#C7B98D

accent

#B750D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405DB8

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

Preview Lab → · Contrast checker → · Palette generator →