#405BB4#405BB4

#405BB4 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.8% C 0.144 H 268.1°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#405BB4
RGB	rgb(64, 91, 180)
HSL	hsl(226, 48%, 48%)
HSV	hsv(226, 64%, 71%)
CMYK	cmyk(64.4%, 49.4%, 0%, 29.4%)
CIE-LAB	lab(41.00, 18.93, -50.38)
CIE-LCH	lch(41.00, 53.82, 290.59°)
OKLab	oklab(49.83% -0.0047 -0.1443)
OKLCH	oklch(49.83% 0.144 268.1)
XYZ	xyz(14.0908, 11.8662, 44.7190)
Luminance	0.1187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BB4 #B49940

analogous

#4095B4 #405BB4 #5F40B4

triadic

#405BB4 #B4405B #5BB440

tetradic

#405BB4 #B44095 #B49940 #40B45F

square

#405BB4 #B44095 #B49940 #40B45F

split-complementary

#405BB4 #B45F40 #95B440

monochromatic

#202D5A #304487 #405BB4 #687FC9 #95A5D9

Accessibility & contrast

On white

6.23

#405BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#405BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BB4

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BB4	#FFFFFF	#000000	##FFFFFF
##405BB4	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B66B7

Deuteranopia (green-blind)

#0F5CB2

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405bb4;
/* rgb */ color: rgb(64, 91, 180);
/* oklch */ color: oklch(49.8% 0.144 268.1);

Tailwind

colors: {
  custom: {
    50: '#8189cb',
    500: '#405bb4',
    950: '#000000',
  },
}

SCSS

$custom: #405bb4;
$custom-light: #8189cb;
$custom-dark: #000000;

JSON

{
  "hex": "#405bb4",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 180
  },
  "hsl": {
    "h": 226.034,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49828,
    "c": 0.14439,
    "h": 268.1
  },
  "luminance": 0.11867
}

Semantic roles & 50–950 ramp

primary

#405BB4

secondary

#C5B78B

accent

#B851D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405BB4

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

Preview Lab → · Contrast checker → · Palette generator →