#405BBC#405BBC

#405BBC is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.4% C 0.156 H 268.6°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#405BBC
RGB	rgb(64, 91, 188)
HSL	hsl(227, 49%, 49%)
HSV	hsv(227, 66%, 74%)
CMYK	cmyk(66%, 51.6%, 0%, 26.3%)
CIE-LAB	lab(41.53, 21.78, -54.21)
CIE-LCH	lch(41.53, 58.42, 291.89°)
OKLab	oklab(50.4% -0.0038 -0.1556)
OKLCH	oklch(50.4% 0.156 268.6)
XYZ	xyz(14.9294, 12.2016, 49.1356)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BBC #BCA140

analogous

#4099BC #405BBC #6340BC

triadic

#405BBC #BC405B #5BBC40

tetradic

#405BBC #BC4099 #BCA140 #40BC63

square

#405BBC #BC4099 #BCA140 #40BC63

split-complementary

#405BBC #BC6340 #99BC40

monochromatic

#212F61 #30458E #405BBC #6C81CD #9AA8DD

Accessibility & contrast

On white

6.10

#405BBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#405BBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BBC

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BBC	#FFFFFF	#000000	##FFFFFF
##405BBC	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2168BF

Deuteranopia (green-blind)

#005DBA

Tritanopia (blue-blind)

#007283

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405bbc;
/* rgb */ color: rgb(64, 91, 188);
/* oklch */ color: oklch(50.4% 0.156 268.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#405bbc",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 188
  },
  "hsl": {
    "h": 226.935,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.50402,
    "c": 0.15561,
    "h": 268.6
  },
  "luminance": 0.12203
}

Semantic roles & 50–950 ramp

primary

#405BBC

secondary

#C9BC8F

accent

#BB4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #405BBC

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

Preview Lab → · Contrast checker → · Palette generator →