#405BB5#405BB5

#405BB5 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.9% C 0.146 H 268.2°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#405BB5
RGB	rgb(64, 91, 181)
HSL	hsl(226, 48%, 48%)
HSV	hsv(226, 65%, 71%)
CMYK	cmyk(64.6%, 49.7%, 0%, 29%)
CIE-LAB	lab(41.07, 19.28, -50.87)
CIE-LCH	lch(41.07, 54.40, 290.76°)
OKLab	oklab(49.9% -0.0046 -0.1457)
OKLCH	oklch(49.9% 0.146 268.2)
XYZ	xyz(14.1931, 11.9071, 45.2574)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BB5 #B59A40

analogous

#4095B5 #405BB5 #5F40B5

triadic

#405BB5 #B5405B #5BB540

tetradic

#405BB5 #B54095 #B59A40 #40B55F

square

#405BB5 #B54095 #B59A40 #40B55F

split-complementary

#405BB5 #B55F40 #95B540

monochromatic

#202E5B #304488 #405BB5 #687FCA #96A5DA

Accessibility & contrast

On white

6.21

#405BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#405BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BB5

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BB5	#FFFFFF	#000000	##FFFFFF
##405BB5	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)

#2A66B8

Deuteranopia (green-blind)

#0C5CB3

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405bb5;
/* rgb */ color: rgb(64, 91, 181);
/* oklch */ color: oklch(49.9% 0.146 268.2);

Tailwind

colors: {
  custom: {
    50: '#8189cc',
    500: '#405bb5',
    950: '#000000',
  },
}

SCSS

$custom: #405bb5;
$custom-light: #8189cc;
$custom-dark: #000000;

JSON

{
  "hex": "#405bb5",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 226.154,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49899,
    "c": 0.14579,
    "h": 268.2
  },
  "luminance": 0.11908
}

Semantic roles & 50–950 ramp

primary

#405BB5

secondary

#C5B88B

accent

#B850D7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405BB5

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

Preview Lab → · Contrast checker → · Palette generator →