#403DAA#403DAA

#403DAA is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.169 H 277.9°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#403DAA
RGB	rgb(64, 61, 170)
HSL	hsl(242, 47%, 45%)
HSV	hsv(242, 64%, 67%)
CMYK	cmyk(62.4%, 64.1%, 0%, 33.3%)
CIE-LAB	lab(32.54, 34.69, -58.16)
CIE-LCH	lch(32.54, 67.72, 300.81°)
OKLab	oklab(43.28% 0.0232 -0.1675)
OKLCH	oklch(43.28% 0.169 277.9)
XYZ	xyz(11.0365, 7.3289, 38.8554)
Luminance	0.0733 (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

#403DAA #A7AA3D

analogous

#3D71AA #403DAA #763DAA

triadic

#403DAA #AA403D #3DAA40

tetradic

#403DAA #AA3D71 #A7AA3D #3DAA76

square

#403DAA #AA3D71 #A7AA3D #3DAA76

split-complementary

#403DAA #AA763D #71AA3D

monochromatic

#1E1D50 #2F2D7D #403DAA #625FC5 #8E8CD6

Accessibility & contrast

On white

8.52

#403DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#403DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DAA

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DAA	#FFFFFF	#000000	##FFFFFF
##403DAA	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AD

Deuteranopia (green-blind)

#0048A8

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #403daa;
/* rgb */ color: rgb(64, 61, 170);
/* oklch */ color: oklch(43.3% 0.169 277.9);

Tailwind

colors: {
  custom: {
    50: '#8173c4',
    500: '#403daa',
    950: '#000000',
  },
}

SCSS

$custom: #403daa;
$custom-light: #8173c4;
$custom-dark: #000000;

JSON

{
  "hex": "#403daa",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 170
  },
  "hsl": {
    "h": 241.651,
    "s": 47.186,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43281,
    "c": 0.16909,
    "h": 277.9
  },
  "luminance": 0.0733
}

Semantic roles & 50–950 ramp

primary

#403DAA

secondary

#BFC082

accent

#D751D3

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403DAA

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

Preview Lab → · Contrast checker → · Palette generator →