#405FD9#405FD9

#405FD9 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.4% C 0.190 H 268.4°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#405FD9
RGB	rgb(64, 95, 217)
HSL	hsl(228, 67%, 55%)
HSV	hsv(228, 71%, 85%)
CMYK	cmyk(70.5%, 56.2%, 0%, 14.9%)
CIE-LAB	lab(44.64, 29.59, -65.91)
CIE-LCH	lch(44.64, 72.24, 294.18°)
OKLab	oklab(53.39% -0.0053 -0.1899)
OKLCH	oklch(53.39% 0.19 268.4)
XYZ	xyz(18.7266, 14.2823, 67.4020)
Luminance	0.1428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FD9 #D9BA40

analogous

#40ACD9 #405FD9 #6D40D9

triadic

#405FD9 #D9405F #5FD940

tetradic

#405FD9 #D940AC #D9BA40 #40D96D

square

#405FD9 #D940AC #D9BA40 #40D96D

split-complementary

#405FD9 #D96D40 #ACD940

monochromatic

#1A3084 #2442B7 #405FD9 #738AE3 #A6B5ED

Accessibility & contrast

On white

5.44

#405FD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#405FD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FD9

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FD9	#FFFFFF	#000000	##FFFFFF
##405FD9	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DD

Deuteranopia (green-blind)

#0063D7

Tritanopia (blue-blind)

#007D93

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #405fd9;
/* rgb */ color: rgb(64, 95, 217);
/* oklch */ color: oklch(53.4% 0.190 268.4);

Tailwind

colors: {
  custom: {
    50: '#888ce6',
    500: '#405fd9',
    950: '#000000',
  },
}

SCSS

$custom: #405fd9;
$custom-light: #888ce6;
$custom-dark: #000000;

JSON

{
  "hex": "#405fd9",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 217
  },
  "hsl": {
    "h": 227.843,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.53388,
    "c": 0.19,
    "h": 268.4
  },
  "luminance": 0.14284
}

Semantic roles & 50–950 ramp

primary

#405FD9

secondary

#DACD9A

accent

#C73EEA

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #405FD9

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

Preview Lab → · Contrast checker → · Palette generator →