#405CD3#405CD3

#405CD3 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.186 H 269.0°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#405CD3
RGB	rgb(64, 92, 211)
HSL	hsl(229, 63%, 54%)
HSV	hsv(229, 70%, 83%)
CMYK	cmyk(69.7%, 56.4%, 0%, 17.3%)
CIE-LAB	lab(43.43, 29.35, -64.44)
CIE-LCH	lch(43.43, 70.81, 294.49°)
OKLab	oklab(52.34% -0.0032 -0.1856)
OKLCH	oklch(52.34% 0.186 269)
XYZ	xyz(17.6953, 13.4457, 63.2781)
Luminance	0.1345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CD3 #D3B740

analogous

#40A6D3 #405CD3 #6E40D3

triadic

#405CD3 #D3405C #5CD340

tetradic

#405CD3 #D340A6 #D3B740 #40D36E

square

#405CD3 #D340A6 #D3B740 #40D36E

split-complementary

#405CD3 #D36E40 #A6D340

monochromatic

#1D2F7C #2842AE #405CD3 #7286DE #A3B1EA

Accessibility & contrast

On white

5.69

#405CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#405CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CD3

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CD3	#FFFFFF	#000000	##FFFFFF
##405CD3	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED7

Deuteranopia (green-blind)

#0060D1

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #405cd3;
/* rgb */ color: rgb(64, 92, 211);
/* oklch */ color: oklch(52.3% 0.186 269.0);

Tailwind

colors: {
  custom: {
    50: '#8789e1',
    500: '#405cd3',
    950: '#000000',
  },
}

SCSS

$custom: #405cd3;
$custom-light: #8789e1;
$custom-dark: #000000;

JSON

{
  "hex": "#405cd3",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 211
  },
  "hsl": {
    "h": 228.571,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.52344,
    "c": 0.18568,
    "h": 269
  },
  "luminance": 0.13447
}

Semantic roles & 50–950 ramp

primary

#405CD3

secondary

#D7CB98

accent

#C642E6

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #405CD3

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

Preview Lab → · Contrast checker → · Palette generator →