#405BCC#405BCC

#405BCC is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.6% C 0.178 H 269.1°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#405BCC
RGB	rgb(64, 91, 204)
HSL	hsl(228, 58%, 53%)
HSV	hsv(228, 69%, 80%)
CMYK	cmyk(68.6%, 55.4%, 0%, 20%)
CIE-LAB	lab(42.66, 27.49, -61.67)
CIE-LCH	lch(42.66, 67.52, 294.03°)
OKLab	oklab(51.61% -0.0027 -0.1775)
OKLCH	oklch(51.61% 0.178 269.1)
XYZ	xyz(16.7508, 12.9302, 58.7280)
Luminance	0.1293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BCC #CCB140

analogous

#40A1CC #405BCC #6B40CC

triadic

#405BCC #CC405B #5BCC40

tetradic

#405BCC #CC40A1 #CCB140 #40CC6B

square

#405BCC #CC40A1 #CCB140 #40CC6B

split-complementary

#405BCC #CC6B40 #A1CC40

monochromatic

#1F2F73 #2C43A3 #405BCC #7084D9 #A1AEE6

Accessibility & contrast

On white

5.86

#405BCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#405BCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BCC

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BCC	#FFFFFF	#000000	##FFFFFF
##405BCC	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD0

Deuteranopia (green-blind)

#005FCA

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #405bcc;
/* rgb */ color: rgb(64, 91, 204);
/* oklch */ color: oklch(51.6% 0.178 269.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#405bcc",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 204
  },
  "hsl": {
    "h": 228.429,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51605,
    "c": 0.17753,
    "h": 269.1
  },
  "luminance": 0.12932
}

Semantic roles & 50–950 ramp

primary

#405BCC

secondary

#D2C795

accent

#C347E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405BCC

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

Preview Lab → · Contrast checker → · Palette generator →