#405DC9#405DC9

#405DC9 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.171 H 268.5°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#405DC9
RGB	rgb(64, 93, 201)
HSL	hsl(227, 56%, 52%)
HSV	hsv(227, 68%, 79%)
CMYK	cmyk(68.2%, 53.7%, 0%, 21.2%)
CIE-LAB	lab(42.96, 25.15, -59.44)
CIE-LCH	lch(42.96, 64.54, 292.93°)
OKLab	oklab(51.77% -0.0046 -0.1709)
OKLCH	oklch(51.77% 0.171 268.5)
XYZ	xyz(16.5677, 13.1341, 56.9090)
Luminance	0.1314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DC9 #C9AC40

analogous

#40A2C9 #405DC9 #6840C9

triadic

#405DC9 #C9405D #5DC940

tetradic

#405DC9 #C940A2 #C9AC40 #40C968

square

#405DC9 #C940A2 #C9AC40 #40C968

split-complementary

#405DC9 #C96840 #A2C940

monochromatic

#1F306F #2D459F #405DC9 #7085D6 #9FAEE4

Accessibility & contrast

On white

5.79

#405DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#405DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DC9

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DC9	#FFFFFF	#000000	##FFFFFF
##405DC9	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B6CCD

Deuteranopia (green-blind)

#005FC7

Tritanopia (blue-blind)

#00778A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #405dc9;
/* rgb */ color: rgb(64, 93, 201);
/* oklch */ color: oklch(51.8% 0.171 268.5);

Tailwind

colors: {
  custom: {
    50: '#858ada',
    500: '#405dc9',
    950: '#000000',
  },
}

SCSS

$custom: #405dc9;
$custom-light: #858ada;
$custom-dark: #000000;

JSON

{
  "hex": "#405dc9",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 201
  },
  "hsl": {
    "h": 227.299,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51768,
    "c": 0.17099,
    "h": 268.5
  },
  "luminance": 0.13136
}

Semantic roles & 50–950 ramp

primary

#405DC9

secondary

#D0C494

accent

#BF49DF

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405DC9

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

Preview Lab → · Contrast checker → · Palette generator →