#405CCD#405CCD

#405CCD is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.9% C 0.178 H 268.9°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#405CCD
RGB	rgb(64, 92, 205)
HSL	hsl(228, 59%, 53%)
HSV	hsv(228, 69%, 80%)
CMYK	cmyk(68.8%, 55.1%, 0%, 19.6%)
CIE-LAB	lab(42.99, 27.21, -61.71)
CIE-LCH	lch(42.99, 67.44, 293.80°)
OKLab	oklab(51.88% -0.0035 -0.1776)
OKLCH	oklch(51.88% 0.178 268.9)
XYZ	xyz(16.9572, 13.1504, 59.3904)
Luminance	0.1315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CCD #CDB140

analogous

#40A2CD #405CCD #6A40CD

triadic

#405CCD #CD405C #5CCD40

tetradic

#405CCD #CD40A2 #CDB140 #40CD6A

square

#405CCD #CD40A2 #CDB140 #40CD6A

split-complementary

#405CCD #CD6A40 #A2CD40

monochromatic

#1E2F74 #2B43A5 #405CCD #7185DA #A1AFE6

Accessibility & contrast

On white

5.78

#405CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#405CCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CCD

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CCD	#FFFFFF	#000000	##FFFFFF
##405CCD	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD1

Deuteranopia (green-blind)

#005FCB

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #405ccd;
/* rgb */ color: rgb(64, 92, 205);
/* oklch */ color: oklch(51.9% 0.178 268.9);

Tailwind

colors: {
  custom: {
    50: '#8589dd',
    500: '#405ccd',
    950: '#000000',
  },
}

SCSS

$custom: #405ccd;
$custom-light: #8589dd;
$custom-dark: #000000;

JSON

{
  "hex": "#405ccd",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 205
  },
  "hsl": {
    "h": 228.085,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51877,
    "c": 0.17764,
    "h": 268.9
  },
  "luminance": 0.13152
}

Semantic roles & 50–950 ramp

primary

#405CCD

secondary

#D3C796

accent

#C346E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405CCD

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

Preview Lab → · Contrast checker → · Palette generator →