#405EB6#405EB6

#405EB6 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.6% C 0.143 H 267.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#405EB6
RGB	rgb(64, 94, 182)
HSL	hsl(225, 48%, 48%)
HSV	hsv(225, 65%, 71%)
CMYK	cmyk(64.8%, 48.4%, 0%, 28.6%)
CIE-LAB	lab(41.96, 17.71, -50.02)
CIE-LCH	lch(41.96, 53.07, 289.49°)
OKLab	oklab(50.6% -0.0074 -0.1432)
OKLCH	oklch(50.6% 0.143 267)
XYZ	xyz(14.5577, 12.4715, 45.8870)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405EB6 #B69840

analogous

#4099B6 #405EB6 #5D40B6

triadic

#405EB6 #B6405E #5EB640

tetradic

#405EB6 #B64099 #B69840 #40B65D

square

#405EB6 #B64099 #B69840 #40B65D

split-complementary

#405EB6 #B65D40 #99B640

monochromatic

#202F5B #304789 #405EB6 #6982CA #96A8DA

Accessibility & contrast

On white

6.01

#405EB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#405EB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405EB6

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405EB6	#FFFFFF	#000000	##FFFFFF
##405EB6	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3069B9

Deuteranopia (green-blind)

#175EB4

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405eb6;
/* rgb */ color: rgb(64, 94, 182);
/* oklch */ color: oklch(50.6% 0.143 267.0);

Tailwind

colors: {
  custom: {
    50: '#818bcc',
    500: '#405eb6',
    950: '#000000',
  },
}

SCSS

$custom: #405eb6;
$custom-light: #818bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#405eb6",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 182
  },
  "hsl": {
    "h": 224.746,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.50596,
    "c": 0.1434,
    "h": 267
  },
  "luminance": 0.12473
}

Semantic roles & 50–950 ramp

primary

#405EB6

secondary

#C6B78C

accent

#B550D8

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405EB6

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

Preview Lab → · Contrast checker → · Palette generator →