#405CCC#405CCC

#405CCC is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.176 H 268.8°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#405CCC
RGB	rgb(64, 92, 204)
HSL	hsl(228, 58%, 53%)
HSV	hsv(228, 69%, 80%)
CMYK	cmyk(68.6%, 54.9%, 0%, 20%)
CIE-LAB	lab(42.92, 26.86, -61.25)
CIE-LCH	lch(42.92, 66.88, 293.68°)
OKLab	oklab(51.8% -0.0035 -0.1763)
OKLCH	oklch(51.8% 0.176 268.8)
XYZ	xyz(16.8368, 13.1023, 58.7567)
Luminance	0.1310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CCC #CCB040

analogous

#40A2CC #405CCC #6A40CC

triadic

#405CCC #CC405C #5CCC40

tetradic

#405CCC #CC40A2 #CCB040 #40CC6A

square

#405CCC #CC40A2 #CCB040 #40CC6A

split-complementary

#405CCC #CC6A40 #A2CC40

monochromatic

#1F3073 #2C44A3 #405CCC #7085D9 #A1AEE6

Accessibility & contrast

On white

5.80

#405CCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#405CCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CCC

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CCC	#FFFFFF	#000000	##FFFFFF
##405CCC	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD0

Deuteranopia (green-blind)

#005FCA

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #405ccc;
/* rgb */ color: rgb(64, 92, 204);
/* oklch */ color: oklch(51.8% 0.176 268.8);

Tailwind

colors: {
  custom: {
    50: '#8589dc',
    500: '#405ccc',
    950: '#000000',
  },
}

SCSS

$custom: #405ccc;
$custom-light: #8589dc;
$custom-dark: #000000;

JSON

{
  "hex": "#405ccc",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 204
  },
  "hsl": {
    "h": 228,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.518,
    "c": 0.1763,
    "h": 268.8
  },
  "luminance": 0.13104
}

Semantic roles & 50–950 ramp

primary

#405CCC

secondary

#D2C695

accent

#C247E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405CCC

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

Preview Lab → · Contrast checker → · Palette generator →