#403AAD#403AAD

#403AAD is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.177 H 278.3°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#403AAD
RGB	rgb(64, 58, 173)
HSL	hsl(243, 50%, 45%)
HSV	hsv(243, 66%, 68%)
CMYK	cmyk(63%, 66.5%, 0%, 32.2%)
CIE-LAB	lab(32.11, 37.54, -60.67)
CIE-LCH	lch(32.11, 71.35, 301.75°)
OKLab	oklab(43.04% 0.0254 -0.1749)
OKLCH	oklch(43.04% 0.177 278.3)
XYZ	xyz(11.1678, 7.1324, 40.3152)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403AAD #A7AD3A

analogous

#3A6EAD #403AAD #793AAD

triadic

#403AAD #AD403A #3AAD40

tetradic

#403AAD #AD3A6E #A7AD3A #3AAD79

square

#403AAD #AD3A6E #A7AD3A #3AAD79

split-complementary

#403AAD #AD793A #6EAD3A

monochromatic

#1E1B51 #2F2B7F #403AAD #625CC8 #8E8AD8

Accessibility & contrast

On white

8.65

#403AAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#403AAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AAD

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AAD	#FFFFFF	#000000	##FFFFFF
##403AAD	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B1

Deuteranopia (green-blind)

#0047AB

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403aad;
/* rgb */ color: rgb(64, 58, 173);
/* oklch */ color: oklch(43.0% 0.177 278.3);

Tailwind

colors: {
  custom: {
    50: '#8171c6',
    500: '#403aad',
    950: '#000000',
  },
}

SCSS

$custom: #403aad;
$custom-light: #8171c6;
$custom-dark: #000000;

JSON

{
  "hex": "#403aad",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 173
  },
  "hsl": {
    "h": 243.13,
    "s": 49.784,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43041,
    "c": 0.17671,
    "h": 278.3
  },
  "luminance": 0.07133
}

Semantic roles & 50–950 ramp

primary

#403AAD

secondary

#BFC281

accent

#D94ED2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #403AAD

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

Preview Lab → · Contrast checker → · Palette generator →