#405AB9#405AB9

#405AB9 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.0% C 0.153 H 268.8°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#405AB9
RGB	rgb(64, 90, 185)
HSL	hsl(227, 49%, 49%)
HSV	hsv(227, 65%, 73%)
CMYK	cmyk(65.4%, 51.4%, 0%, 27.5%)
CIE-LAB	lab(41.06, 21.36, -53.22)
CIE-LCH	lch(41.06, 57.34, 291.86°)
OKLab	oklab(49.98% -0.0032 -0.1527)
OKLCH	oklch(49.98% 0.153 268.8)
XYZ	xyz(14.5245, 11.9038, 47.4218)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405AB9 #B99F40

analogous

#4097B9 #405AB9 #6340B9

triadic

#405AB9 #B9405A #5AB940

tetradic

#405AB9 #B94097 #B99F40 #40B963

square

#405AB9 #B94097 #B99F40 #40B963

split-complementary

#405AB9 #B96340 #97B940

monochromatic

#212E5E #30448C #405AB9 #6B7FCC #98A6DB

Accessibility & contrast

On white

6.21

#405AB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#405AB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405AB9

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405AB9	#FFFFFF	#000000	##FFFFFF
##405AB9	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2267BC

Deuteranopia (green-blind)

#005CB7

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405ab9;
/* rgb */ color: rgb(64, 90, 185);
/* oklch */ color: oklch(50.0% 0.153 268.8);

Tailwind

colors: {
  custom: {
    50: '#8288cf',
    500: '#405ab9',
    950: '#000000',
  },
}

SCSS

$custom: #405ab9;
$custom-light: #8288cf;
$custom-dark: #000000;

JSON

{
  "hex": "#405ab9",
  "rgb": {
    "r": 64,
    "g": 90,
    "b": 185
  },
  "hsl": {
    "h": 227.107,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.4998,
    "c": 0.15269,
    "h": 268.8
  },
  "luminance": 0.11905
}

Semantic roles & 50–950 ramp

primary

#405AB9

secondary

#C7BB8E

accent

#BB50D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405AB9

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

Preview Lab → · Contrast checker → · Palette generator →