#403DAD#403DAD

#403DAD is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.173 H 277.6°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#403DAD
RGB	rgb(64, 61, 173)
HSL	hsl(242, 48%, 46%)
HSV	hsv(242, 65%, 68%)
CMYK	cmyk(63%, 64.7%, 0%, 32.2%)
CIE-LAB	lab(32.80, 35.70, -59.54)
CIE-LCH	lch(32.80, 69.43, 300.94°)
OKLab	oklab(43.54% 0.0229 -0.1715)
OKLCH	oklch(43.54% 0.173 277.6)
XYZ	xyz(11.3235, 7.4437, 40.3671)
Luminance	0.0745 (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

#403DAD #AAAD3D

analogous

#3D72AD #403DAD #783DAD

triadic

#403DAD #AD403D #3DAD40

tetradic

#403DAD #AD3D72 #AAAD3D #3DAD78

square

#403DAD #AD3D72 #AAAD3D #3DAD78

split-complementary

#403DAD #AD783D #72AD3D

monochromatic

#1F1D53 #2F2D80 #403DAD #6360C7 #8F8DD7

Accessibility & contrast

On white

8.44

#403DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#403DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DAD

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DAD	#FFFFFF	#000000	##FFFFFF
##403DAD	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B1

Deuteranopia (green-blind)

#0048AB

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #403dad;
/* rgb */ color: rgb(64, 61, 173);
/* oklch */ color: oklch(43.5% 0.173 277.6);

Tailwind

colors: {
  custom: {
    50: '#8173c6',
    500: '#403dad',
    950: '#000000',
  },
}

SCSS

$custom: #403dad;
$custom-light: #8173c6;
$custom-dark: #000000;

JSON

{
  "hex": "#403dad",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 173
  },
  "hsl": {
    "h": 241.607,
    "s": 47.863,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43543,
    "c": 0.17307,
    "h": 277.6
  },
  "luminance": 0.07445
}

Semantic roles & 50–950 ramp

primary

#403DAD

secondary

#C0C284

accent

#D750D4

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403DAD

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

Preview Lab → · Contrast checker → · Palette generator →