#405BD9#405BD9

#405BD9 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.195 H 269.3°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#405BD9
RGB	rgb(64, 91, 217)
HSL	hsl(229, 67%, 55%)
HSV	hsv(229, 71%, 85%)
CMYK	cmyk(70.5%, 58.1%, 0%, 14.9%)
CIE-LAB	lab(43.62, 32.11, -67.55)
CIE-LCH	lch(43.62, 74.80, 295.43°)
OKLab	oklab(52.63% -0.0023 -0.1948)
OKLCH	oklch(52.63% 0.195 269.3)
XYZ	xyz(18.3755, 13.5801, 67.2850)
Luminance	0.1358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BD9 #D9BE40

analogous

#40A7D9 #405BD9 #7240D9

triadic

#405BD9 #D9405B #5BD940

tetradic

#405BD9 #D940A7 #D9BE40 #40D972

square

#405BD9 #D940A7 #D9BE40 #40D972

split-complementary

#405BD9 #D97240 #A7D940

monochromatic

#1A2D84 #243EB7 #405BD9 #7387E3 #A6B3ED

Accessibility & contrast

On white

5.65

#405BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#405BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BD9

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BD9	#FFFFFF	#000000	##FFFFFF
##405BD9	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EDD

Deuteranopia (green-blind)

#0060D7

Tritanopia (blue-blind)

#007A91

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #405bd9;
/* rgb */ color: rgb(64, 91, 217);
/* oklch */ color: oklch(52.6% 0.195 269.3);

Tailwind

colors: {
  custom: {
    50: '#8889e6',
    500: '#405bd9',
    950: '#000000',
  },
}

SCSS

$custom: #405bd9;
$custom-light: #8889e6;
$custom-dark: #000000;

JSON

{
  "hex": "#405bd9",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 217
  },
  "hsl": {
    "h": 229.412,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.52632,
    "c": 0.19481,
    "h": 269.3
  },
  "luminance": 0.13582
}

Semantic roles & 50–950 ramp

primary

#405BD9

secondary

#DACF9A

accent

#CB3EEA

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #405BD9

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

Preview Lab → · Contrast checker → · Palette generator →