#405DB0#405DB0

#405DB0 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.0% C 0.136 H 266.9°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#405DB0
RGB	rgb(64, 93, 176)
HSL	hsl(224, 47%, 47%)
HSV	hsv(224, 64%, 69%)
CMYK	cmyk(63.6%, 47.2%, 0%, 31%)
CIE-LAB	lab(41.30, 16.21, -47.56)
CIE-LCH	lch(41.30, 50.25, 288.83°)
OKLab	oklab(49.97% -0.0072 -0.136)
OKLCH	oklch(49.97% 0.136 266.9)
XYZ	xyz(13.8625, 12.0520, 42.6616)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DB0 #B09340

analogous

#4095B0 #405DB0 #5B40B0

triadic

#405DB0 #B0405D #5DB040

tetradic

#405DB0 #B04095 #B09340 #40B05B

square

#405DB0 #B04095 #B09340 #40B05B

split-complementary

#405DB0 #B05B40 #95B040

monochromatic

#1F2E56 #304583 #405DB0 #667FC7 #93A5D8

Accessibility & contrast

On white

6.16

#405DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#405DB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DB0

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DB0	#FFFFFF	#000000	##FFFFFF
##405DB0	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3467B3

Deuteranopia (green-blind)

#1F5DAE

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405db0;
/* rgb */ color: rgb(64, 93, 176);
/* oklch */ color: oklch(50.0% 0.136 266.9);

Tailwind

colors: {
  custom: {
    50: '#808ac8',
    500: '#405db0',
    950: '#000000',
  },
}

SCSS

$custom: #405db0;
$custom-light: #808ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#405db0",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 176
  },
  "hsl": {
    "h": 224.464,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.49972,
    "c": 0.13616,
    "h": 266.9
  },
  "luminance": 0.12053
}

Semantic roles & 50–950 ramp

primary

#405DB0

secondary

#C3B489

accent

#B451D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405DB0

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

Preview Lab → · Contrast checker → · Palette generator →