#405DD9#405DD9

#405DD9 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.0% C 0.192 H 268.9°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#405DD9
RGB	rgb(64, 93, 217)
HSL	hsl(229, 67%, 55%)
HSV	hsv(229, 71%, 85%)
CMYK	cmyk(70.5%, 57.1%, 0%, 14.9%)
CIE-LAB	lab(44.13, 30.85, -66.73)
CIE-LCH	lch(44.13, 73.52, 294.81°)
OKLab	oklab(53.01% -0.0038 -0.1924)
OKLCH	oklch(53.01% 0.192 268.9)
XYZ	xyz(18.5488, 13.9266, 67.3427)
Luminance	0.1393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DD9 #D9BC40

analogous

#40AAD9 #405DD9 #6F40D9

triadic

#405DD9 #D9405D #5DD940

tetradic

#405DD9 #D940AA #D9BC40 #40D96F

square

#405DD9 #D940AA #D9BC40 #40D96F

split-complementary

#405DD9 #D96F40 #AAD940

monochromatic

#1A2E84 #2440B7 #405DD9 #7388E3 #A6B4ED

Accessibility & contrast

On white

5.55

#405DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#405DD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DD9

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DD9	#FFFFFF	#000000	##FFFFFF
##405DD9	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070DD

Deuteranopia (green-blind)

#0062D7

Tritanopia (blue-blind)

#007C92

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #405dd9;
/* rgb */ color: rgb(64, 93, 217);
/* oklch */ color: oklch(53.0% 0.192 268.9);

Tailwind

colors: {
  custom: {
    50: '#888ae6',
    500: '#405dd9',
    950: '#000000',
  },
}

SCSS

$custom: #405dd9;
$custom-light: #888ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#405dd9",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 217
  },
  "hsl": {
    "h": 228.627,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.53008,
    "c": 0.19241,
    "h": 268.9
  },
  "luminance": 0.13928
}

Semantic roles & 50–950 ramp

primary

#405DD9

secondary

#DACE9A

accent

#C93EEA

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #405DD9

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

Preview Lab → · Contrast checker → · Palette generator →