#405BC4#405BC4

#405BC4 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.167 H 268.9°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#405BC4
RGB	rgb(64, 91, 196)
HSL	hsl(228, 53%, 51%)
HSV	hsv(228, 67%, 77%)
CMYK	cmyk(67.3%, 53.6%, 0%, 23.1%)
CIE-LAB	lab(42.09, 24.64, -57.97)
CIE-LCH	lch(42.09, 62.99, 293.03°)
OKLab	oklab(51% -0.0032 -0.1666)
OKLCH	oklch(51% 0.167 268.9)
XYZ	xyz(15.8158, 12.5562, 53.8039)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BC4 #C4A940

analogous

#409DC4 #405BC4 #6740C4

triadic

#405BC4 #C4405B #5BC440

tetradic

#405BC4 #C4409D #C4A940 #40C467

square

#405BC4 #C4409D #C4A940 #40C467

split-complementary

#405BC4 #C46740 #9DC440

monochromatic

#202F69 #2F4498 #405BC4 #6F83D2 #9EABE1

Accessibility & contrast

On white

5.98

#405BC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#405BC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BC4

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BC4	#FFFFFF	#000000	##FFFFFF
##405BC4	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)

#0F6AC8

Deuteranopia (green-blind)

#005EC2

Tritanopia (blue-blind)

#007486

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405bc4;
/* rgb */ color: rgb(64, 91, 196);
/* oklch */ color: oklch(51.0% 0.167 268.9);

Tailwind

colors: {
  custom: {
    50: '#8489d7',
    500: '#405bc4',
    950: '#000000',
  },
}

SCSS

$custom: #405bc4;
$custom-light: #8489d7;
$custom-dark: #000000;

JSON

{
  "hex": "#405bc4",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 196
  },
  "hsl": {
    "h": 227.727,
    "s": 52.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50995,
    "c": 0.16665,
    "h": 268.9
  },
  "luminance": 0.12558
}

Semantic roles & 50–950 ramp

primary

#405BC4

secondary

#CDC193

accent

#BF4CDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #405BC4

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

Preview Lab → · Contrast checker → · Palette generator →