#405FD3#405FD3

#405FD3 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.9% C 0.182 H 268.2°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#405FD3
RGB	rgb(64, 95, 211)
HSL	hsl(227, 63%, 54%)
HSV	hsv(227, 70%, 83%)
CMYK	cmyk(69.7%, 55%, 0%, 17.3%)
CIE-LAB	lab(44.20, 27.45, -63.19)
CIE-LCH	lch(44.20, 68.89, 293.48°)
OKLab	oklab(52.92% -0.0056 -0.1819)
OKLCH	oklch(52.92% 0.182 268.2)
XYZ	xyz(17.9604, 13.9758, 63.3664)
Luminance	0.1398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FD3 #D3B440

analogous

#40A9D3 #405FD3 #6B40D3

triadic

#405FD3 #D3405F #5FD340

tetradic

#405FD3 #D340A9 #D3B440 #40D36B

square

#405FD3 #D340A9 #D3B440 #40D36B

split-complementary

#405FD3 #D36B40 #A9D340

monochromatic

#1D317C #2844AE #405FD3 #7289DE #A3B2EA

Accessibility & contrast

On white

5.53

#405FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#405FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FD3

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FD3	#FFFFFF	#000000	##FFFFFF
##405FD3	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD7

Deuteranopia (green-blind)

#0062D1

Tritanopia (blue-blind)

#007B90

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #405fd3;
/* rgb */ color: rgb(64, 95, 211);
/* oklch */ color: oklch(52.9% 0.182 268.2);

Tailwind

colors: {
  custom: {
    50: '#868ce1',
    500: '#405fd3',
    950: '#000000',
  },
}

SCSS

$custom: #405fd3;
$custom-light: #868ce1;
$custom-dark: #000000;

JSON

{
  "hex": "#405fd3",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 211
  },
  "hsl": {
    "h": 227.347,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.52922,
    "c": 0.18202,
    "h": 268.2
  },
  "luminance": 0.13978
}

Semantic roles & 50–950 ramp

primary

#405FD3

secondary

#D7CA98

accent

#C342E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0C15

muted

#7D7D83

Preview Lab

Preview with #405FD3

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

Preview Lab → · Contrast checker → · Palette generator →