#405CB9#405CB9

#405CB9 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.4% C 0.150 H 268.1°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#405CB9
RGB	rgb(64, 92, 185)
HSL	hsl(226, 49%, 49%)
HSV	hsv(226, 65%, 73%)
CMYK	cmyk(65.4%, 50.3%, 0%, 27.5%)
CIE-LAB	lab(41.60, 20.07, -52.34)
CIE-LCH	lch(41.60, 56.06, 290.98°)
OKLab	oklab(50.39% -0.0051 -0.1501)
OKLCH	oklch(50.39% 0.15 268.1)
XYZ	xyz(14.6955, 12.2457, 47.4788)
Luminance	0.1225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CB9 #B99D40

analogous

#4099B9 #405CB9 #6140B9

triadic

#405CB9 #B9405C #5CB940

tetradic

#405CB9 #B94099 #B99D40 #40B961

square

#405CB9 #B94099 #B99D40 #40B961

split-complementary

#405CB9 #B96140 #99B940

monochromatic

#212F5E #30458C #405CB9 #6B81CC #98A8DB

Accessibility & contrast

On white

6.09

#405CB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#405CB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CB9

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CB9	#FFFFFF	#000000	##FFFFFF
##405CB9	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2868BC

Deuteranopia (green-blind)

#015DB7

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405cb9;
/* rgb */ color: rgb(64, 92, 185);
/* oklch */ color: oklch(50.4% 0.150 268.1);

Tailwind

colors: {
  custom: {
    50: '#8289cf',
    500: '#405cb9',
    950: '#000000',
  },
}

SCSS

$custom: #405cb9;
$custom-light: #8289cf;
$custom-dark: #000000;

JSON

{
  "hex": "#405cb9",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 185
  },
  "hsl": {
    "h": 226.116,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.50391,
    "c": 0.15015,
    "h": 268.1
  },
  "luminance": 0.12247
}

Semantic roles & 50–950 ramp

primary

#405CB9

secondary

#C7BA8E

accent

#B950D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405CB9

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

Preview Lab → · Contrast checker → · Palette generator →