#405EB8#405EB8

#405EB8 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.7% C 0.146 H 267.2°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#405EB8
RGB	rgb(64, 94, 184)
HSL	hsl(225, 48%, 49%)
HSV	hsv(225, 65%, 72%)
CMYK	cmyk(65.2%, 48.9%, 0%, 27.8%)
CIE-LAB	lab(42.08, 18.42, -50.99)
CIE-LCH	lch(42.08, 54.21, 289.87°)
OKLab	oklab(50.74% -0.0071 -0.146)
OKLCH	oklch(50.74% 0.146 267.2)
XYZ	xyz(14.7658, 12.5547, 46.9833)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405EB8 #B89A40

analogous

#409AB8 #405EB8 #5E40B8

triadic

#405EB8 #B8405E #5EB840

tetradic

#405EB8 #B8409A #B89A40 #40B85E

square

#405EB8 #B8409A #B89A40 #40B85E

split-complementary

#405EB8 #B85E40 #9AB840

monochromatic

#20305D #30478B #405EB8 #6A82CB #97A8DB

Accessibility & contrast

On white

5.98

#405EB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#405EB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405EB8

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405EB8	#FFFFFF	#000000	##FFFFFF
##405EB8	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)

#2E69BB

Deuteranopia (green-blind)

#125EB6

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405eb8;
/* rgb */ color: rgb(64, 94, 184);
/* oklch */ color: oklch(50.7% 0.146 267.2);

Tailwind

colors: {
  custom: {
    50: '#818bce',
    500: '#405eb8',
    950: '#000000',
  },
}

SCSS

$custom: #405eb8;
$custom-light: #818bce;
$custom-dark: #000000;

JSON

{
  "hex": "#405eb8",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 184
  },
  "hsl": {
    "h": 225,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.50735,
    "c": 0.14621,
    "h": 267.2
  },
  "luminance": 0.12556
}

Semantic roles & 50–950 ramp

primary

#405EB8

secondary

#C7B88D

accent

#B650D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405EB8

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

Preview Lab → · Contrast checker → · Palette generator →