#405FD4#405FD4

#405FD4 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.0% C 0.183 H 268.3°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#405FD4
RGB	rgb(64, 95, 212)
HSL	hsl(227, 63%, 54%)
HSV	hsv(227, 70%, 83%)
CMYK	cmyk(69.8%, 55.2%, 0%, 16.9%)
CIE-LAB	lab(44.27, 27.80, -63.64)
CIE-LCH	lch(44.27, 69.45, 293.60°)
OKLab	oklab(53% -0.0056 -0.1833)
OKLCH	oklch(53% 0.183 268.3)
XYZ	xyz(18.0861, 14.0261, 64.0287)
Luminance	0.1403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FD4 #D4B540

analogous

#40A9D4 #405FD4 #6B40D4

triadic

#405FD4 #D4405F #5FD440

tetradic

#405FD4 #D440A9 #D4B540 #40D46B

square

#405FD4 #D440A9 #D4B540 #40D46B

split-complementary

#405FD4 #D46B40 #A9D440

monochromatic

#1C317D #2744AF #405FD4 #7289DF #A4B3EA

Accessibility & contrast

On white

5.52

#405FD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#405FD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FD4

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FD4	#FFFFFF	#000000	##FFFFFF
##405FD4	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070D8

Deuteranopia (green-blind)

#0062D2

Tritanopia (blue-blind)

#007B90

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #405fd4;
/* rgb */ color: rgb(64, 95, 212);
/* oklch */ color: oklch(53.0% 0.183 268.3);

Tailwind

colors: {
  custom: {
    50: '#878ce2',
    500: '#405fd4',
    950: '#000000',
  },
}

SCSS

$custom: #405fd4;
$custom-light: #878ce2;
$custom-dark: #000000;

JSON

{
  "hex": "#405fd4",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 212
  },
  "hsl": {
    "h": 227.432,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52999,
    "c": 0.18335,
    "h": 268.3
  },
  "luminance": 0.14028
}

Semantic roles & 50–950 ramp

primary

#405FD4

secondary

#D7CA98

accent

#C442E6

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #405FD4

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

Preview Lab → · Contrast checker → · Palette generator →