#405EB0#405EB0

#405EB0 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.2% C 0.135 H 266.5°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#405EB0
RGB	rgb(64, 94, 176)
HSL	hsl(224, 47%, 47%)
HSV	hsv(224, 64%, 69%)
CMYK	cmyk(63.6%, 46.6%, 0%, 31%)
CIE-LAB	lab(41.58, 15.57, -47.11)
CIE-LCH	lch(41.58, 49.62, 288.29°)
OKLab	oklab(50.19% -0.0083 -0.1346)
OKLCH	oklch(50.19% 0.135 266.5)
XYZ	xyz(13.9508, 12.2287, 42.6911)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405EB0 #B09240

analogous

#4096B0 #405EB0 #5A40B0

triadic

#405EB0 #B0405E #5EB040

tetradic

#405EB0 #B04096 #B09240 #40B05A

square

#405EB0 #B04096 #B09240 #40B05A

split-complementary

#405EB0 #B05A40 #96B040

monochromatic

#1F2E56 #304683 #405EB0 #6680C7 #93A5D8

Accessibility & contrast

On white

6.09

#405EB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#405EB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405EB0

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405EB0	#FFFFFF	#000000	##FFFFFF
##405EB0	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)

#3667B3

Deuteranopia (green-blind)

#225DAE

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405eb0;
/* rgb */ color: rgb(64, 94, 176);
/* oklch */ color: oklch(50.2% 0.135 266.5);

Tailwind

colors: {
  custom: {
    50: '#808bc8',
    500: '#405eb0',
    950: '#000000',
  },
}

SCSS

$custom: #405eb0;
$custom-light: #808bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#405eb0",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 176
  },
  "hsl": {
    "h": 223.929,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50185,
    "c": 0.13489,
    "h": 266.5
  },
  "luminance": 0.1223
}

Semantic roles & 50–950 ramp

primary

#405EB0

secondary

#C3B389

accent

#B351D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405EB0

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

Preview Lab → · Contrast checker → · Palette generator →