#405CD5#405CD5

#405CD5 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.5% C 0.188 H 269.0°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#405CD5
RGB	rgb(64, 92, 213)
HSL	hsl(229, 64%, 54%)
HSV	hsv(229, 70%, 84%)
CMYK	cmyk(70%, 56.8%, 0%, 16.5%)
CIE-LAB	lab(43.58, 30.06, -65.35)
CIE-LCH	lch(43.58, 71.93, 294.70°)
OKLab	oklab(52.5% -0.0032 -0.1883)
OKLCH	oklch(52.5% 0.188 269)
XYZ	xyz(17.9476, 13.5466, 64.6068)
Luminance	0.1355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CD5 #D5B940

analogous

#40A6D5 #405CD5 #6F40D5

triadic

#405CD5 #D5405C #5CD540

tetradic

#405CD5 #D540A6 #D5B940 #40D56F

square

#405CD5 #D540A6 #D5B940 #40D56F

split-complementary

#405CD5 #D56F40 #A6D540

monochromatic

#1C2E7F #2741B1 #405CD5 #7287E0 #A4B2EB

Accessibility & contrast

On white

5.66

#405CD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#405CD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CD5

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CD5	#FFFFFF	#000000	##FFFFFF
##405CD5	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED9

Deuteranopia (green-blind)

#0060D3

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #405cd5;
/* rgb */ color: rgb(64, 92, 213);
/* oklch */ color: oklch(52.5% 0.188 269.0);

Tailwind

colors: {
  custom: {
    50: '#8789e3',
    500: '#405cd5',
    950: '#000000',
  },
}

SCSS

$custom: #405cd5;
$custom-light: #8789e3;
$custom-dark: #000000;

JSON

{
  "hex": "#405cd5",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 213
  },
  "hsl": {
    "h": 228.725,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.52501,
    "c": 0.18834,
    "h": 269
  },
  "luminance": 0.13548
}

Semantic roles & 50–950 ramp

primary

#405CD5

secondary

#D8CC99

accent

#C841E7

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B15

muted

#7E7C84

Preview Lab

Preview with #405CD5

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

Preview Lab → · Contrast checker → · Palette generator →