#405EB7#405EB7

#405EB7 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.7% C 0.145 H 267.1°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#405EB7
RGB	rgb(64, 94, 183)
HSL	hsl(225, 48%, 48%)
HSV	hsv(225, 65%, 72%)
CMYK	cmyk(65%, 48.6%, 0%, 28.2%)
CIE-LAB	lab(42.02, 18.07, -50.51)
CIE-LCH	lch(42.02, 53.64, 289.68°)
OKLab	oklab(50.67% -0.0073 -0.1446)
OKLCH	oklch(50.67% 0.145 267.1)
XYZ	xyz(14.6614, 12.5129, 46.4332)
Luminance	0.1251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405EB7 #B79940

analogous

#4099B7 #405EB7 #5D40B7

triadic

#405EB7 #B7405E #5EB740

tetradic

#405EB7 #B74099 #B79940 #40B75D

square

#405EB7 #B74099 #B79940 #40B75D

split-complementary

#405EB7 #B75D40 #99B740

monochromatic

#202F5C #30478A #405EB7 #6982CB #97A8DB

Accessibility & contrast

On white

6.00

#405EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#405EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405EB7

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405EB7	#FFFFFF	#000000	##FFFFFF
##405EB7	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F69BA

Deuteranopia (green-blind)

#145EB5

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405eb7;
/* rgb */ color: rgb(64, 94, 183);
/* oklch */ color: oklch(50.7% 0.145 267.1);

Tailwind

colors: {
  custom: {
    50: '#818bcd',
    500: '#405eb7',
    950: '#000000',
  },
}

SCSS

$custom: #405eb7;
$custom-light: #818bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#405eb7",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 183
  },
  "hsl": {
    "h": 224.874,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.50665,
    "c": 0.1448,
    "h": 267.1
  },
  "luminance": 0.12514
}

Semantic roles & 50–950 ramp

primary

#405EB7

secondary

#C6B88D

accent

#B650D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405EB7

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

Preview Lab → · Contrast checker → · Palette generator →