#405CBC#405CBC

#405CBC is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.6% C 0.154 H 268.2°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#405CBC
RGB	rgb(64, 92, 188)
HSL	hsl(226, 49%, 49%)
HSV	hsv(226, 66%, 74%)
CMYK	cmyk(66%, 51.1%, 0%, 26.3%)
CIE-LAB	lab(41.80, 21.14, -53.77)
CIE-LCH	lch(41.80, 57.78, 291.46°)
OKLab	oklab(50.61% -0.0048 -0.1543)
OKLCH	oklch(50.61% 0.154 268.2)
XYZ	xyz(15.0155, 12.3737, 49.1643)
Luminance	0.1237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CBC #BCA040

analogous

#409ABC #405CBC #6240BC

triadic

#405CBC #BC405C #5CBC40

tetradic

#405CBC #BC409A #BCA040 #40BC62

square

#405CBC #BC409A #BCA040 #40BC62

split-complementary

#405CBC #BC6240 #9ABC40

monochromatic

#212F61 #30468E #405CBC #6C82CD #9AA9DD

Accessibility & contrast

On white

6.04

#405CBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#405CBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CBC

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CBC	#FFFFFF	#000000	##FFFFFF
##405CBC	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2469BF

Deuteranopia (green-blind)

#005DBA

Tritanopia (blue-blind)

#007283

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405cbc;
/* rgb */ color: rgb(64, 92, 188);
/* oklch */ color: oklch(50.6% 0.154 268.2);

Tailwind

colors: {
  custom: {
    50: '#8289d1',
    500: '#405cbc',
    950: '#000000',
  },
}

SCSS

$custom: #405cbc;
$custom-light: #8289d1;
$custom-dark: #000000;

JSON

{
  "hex": "#405cbc",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 188
  },
  "hsl": {
    "h": 226.452,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.50606,
    "c": 0.15434,
    "h": 268.2
  },
  "luminance": 0.12375
}

Semantic roles & 50–950 ramp

primary

#405CBC

secondary

#C9BC8F

accent

#BA4FD9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #405CBC

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

Preview Lab → · Contrast checker → · Palette generator →