#405FB4#405FB4

#405FB4 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.7% C 0.139 H 266.4°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#405FB4
RGB	rgb(64, 95, 180)
HSL	hsl(224, 48%, 48%)
HSV	hsv(224, 64%, 71%)
CMYK	cmyk(64.4%, 47.2%, 0%, 29.4%)
CIE-LAB	lab(42.11, 16.35, -48.61)
CIE-LCH	lch(42.11, 51.29, 288.59°)
OKLab	oklab(50.67% -0.0087 -0.139)
OKLCH	oklch(50.67% 0.139 266.4)
XYZ	xyz(14.4419, 12.5684, 44.8360)
Luminance	0.1257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FB4 #B49540

analogous

#4099B4 #405FB4 #5B40B4

triadic

#405FB4 #B4405F #5FB440

tetradic

#405FB4 #B44099 #B49540 #40B45B

square

#405FB4 #B44099 #B49540 #40B45B

split-complementary

#405FB4 #B45B40 #99B440

monochromatic

#202F5A #304787 #405FB4 #6882C9 #95A7D9

Accessibility & contrast

On white

5.98

#405FB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#405FB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FB4

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FB4	#FFFFFF	#000000	##FFFFFF
##405FB4	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3469B7

Deuteranopia (green-blind)

#1E5EB2

Tritanopia (blue-blind)

#007381

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405fb4;
/* rgb */ color: rgb(64, 95, 180);
/* oklch */ color: oklch(50.7% 0.139 266.4);

Tailwind

colors: {
  custom: {
    50: '#808ccb',
    500: '#405fb4',
    950: '#000000',
  },
}

SCSS

$custom: #405fb4;
$custom-light: #808ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#405fb4",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 180
  },
  "hsl": {
    "h": 223.966,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.50669,
    "c": 0.13931,
    "h": 266.4
  },
  "luminance": 0.1257
}

Semantic roles & 50–950 ramp

primary

#405FB4

secondary

#C5B58B

accent

#B351D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #405FB4

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

Preview Lab → · Contrast checker → · Palette generator →