#405DB1#405DB1

#405DB1 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.0% C 0.138 H 267.0°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#405DB1
RGB	rgb(64, 93, 177)
HSL	hsl(225, 47%, 47%)
HSV	hsv(225, 64%, 69%)
CMYK	cmyk(63.8%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(41.36, 16.57, -48.05)
CIE-LCH	lch(41.36, 50.82, 289.03°)
OKLab	oklab(50.04% -0.0071 -0.1374)
OKLCH	oklch(50.04% 0.138 267)
XYZ	xyz(13.9618, 12.0918, 43.1846)
Luminance	0.1209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DB1 #B19440

analogous

#4095B1 #405DB1 #5C40B1

triadic

#405DB1 #B1405D #5DB140

tetradic

#405DB1 #B14095 #B19440 #40B15C

square

#405DB1 #B14095 #B19440 #40B15C

split-complementary

#405DB1 #B15C40 #95B140

monochromatic

#1F2E57 #304584 #405DB1 #667FC8 #93A5D8

Accessibility & contrast

On white

6.14

#405DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#405DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DB1

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DB1	#FFFFFF	#000000	##FFFFFF
##405DB1	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3367B4

Deuteranopia (green-blind)

#1E5DAF

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405db1;
/* rgb */ color: rgb(64, 93, 177);
/* oklch */ color: oklch(50.0% 0.138 267.0);

Tailwind

colors: {
  custom: {
    50: '#808ac9',
    500: '#405db1',
    950: '#000000',
  },
}

SCSS

$custom: #405db1;
$custom-light: #808ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#405db1",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 224.602,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5004,
    "c": 0.13758,
    "h": 267
  },
  "luminance": 0.12093
}

Semantic roles & 50–950 ramp

primary

#405DB1

secondary

#C3B589

accent

#B451D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405DB1

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

Preview Lab → · Contrast checker → · Palette generator →