#405AB1#405AB1

#405AB1 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.4% C 0.141 H 268.3°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#405AB1
RGB	rgb(64, 90, 177)
HSL	hsl(226, 47%, 47%)
HSV	hsv(226, 64%, 69%)
CMYK	cmyk(63.8%, 49.2%, 0%, 30.6%)
CIE-LAB	lab(40.53, 18.50, -49.38)
CIE-LCH	lch(40.53, 52.73, 290.54°)
OKLab	oklab(49.41% -0.0041 -0.1414)
OKLCH	oklch(49.41% 0.141 268.3)
XYZ	xyz(13.7036, 11.5754, 43.0986)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405AB1 #B19740

analogous

#4092B1 #405AB1 #5F40B1

triadic

#405AB1 #B1405A #5AB140

tetradic

#405AB1 #B14092 #B19740 #40B15F

square

#405AB1 #B14092 #B19740 #40B15F

split-complementary

#405AB1 #B15F40 #92B140

monochromatic

#1F2C57 #304384 #405AB1 #667DC8 #93A3D8

Accessibility & contrast

On white

6.33

#405AB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#405AB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405AB1

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405AB1	#FFFFFF	#000000	##FFFFFF
##405AB1	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C65B4

Deuteranopia (green-blind)

#135BAF

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #405ab1;
/* rgb */ color: rgb(64, 90, 177);
/* oklch */ color: oklch(49.4% 0.141 268.3);

Tailwind

colors: {
  custom: {
    50: '#8088c9',
    500: '#405ab1',
    950: '#000000',
  },
}

SCSS

$custom: #405ab1;
$custom-light: #8088c9;
$custom-dark: #000000;

JSON

{
  "hex": "#405ab1",
  "rgb": {
    "r": 64,
    "g": 90,
    "b": 177
  },
  "hsl": {
    "h": 226.195,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.49409,
    "c": 0.14142,
    "h": 268.3
  },
  "luminance": 0.11577
}

Semantic roles & 50–950 ramp

primary

#405AB1

secondary

#C3B689

accent

#B851D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405AB1

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

Preview Lab → · Contrast checker → · Palette generator →