#403FAC#403FAC

#403FAC is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.169 H 277.2°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#403FAC
RGB	rgb(64, 63, 172)
HSL	hsl(241, 46%, 46%)
HSV	hsv(241, 63%, 67%)
CMYK	cmyk(62.8%, 63.4%, 0%, 32.5%)
CIE-LAB	lab(33.18, 34.12, -58.31)
CIE-LCH	lch(33.18, 67.56, 300.33°)
OKLab	oklab(43.8% 0.0213 -0.1679)
OKLCH	oklch(43.8% 0.169 277.2)
XYZ	xyz(11.3358, 7.6227, 39.8957)
Luminance	0.0762 (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

#403FAC #ABAC3F

analogous

#3F74AC #403FAC #763FAC

triadic

#403FAC #AC403F #3FAC40

tetradic

#403FAC #AC3F74 #ABAC3F #3FAC76

square

#403FAC #AC3F74 #ABAC3F #3FAC76

split-complementary

#403FAC #AC763F #74AC3F

monochromatic

#1F1E52 #2F2F7F #403FAC #6363C6 #908FD6

Accessibility & contrast

On white

8.32

#403FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#403FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FAC

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FAC	#FFFFFF	#000000	##FFFFFF
##403FAC	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AF

Deuteranopia (green-blind)

#0049AA

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #403fac;
/* rgb */ color: rgb(64, 63, 172);
/* oklch */ color: oklch(43.8% 0.169 277.2);

Tailwind

colors: {
  custom: {
    50: '#8174c6',
    500: '#403fac',
    950: '#000000',
  },
}

SCSS

$custom: #403fac;
$custom-light: #8174c6;
$custom-dark: #000000;

JSON

{
  "hex": "#403fac",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 172
  },
  "hsl": {
    "h": 240.55,
    "s": 46.383,
    "l": 46.078
  },
  "oklch": {
    "l": 0.438,
    "c": 0.16927,
    "h": 277.2
  },
  "luminance": 0.07624
}

Semantic roles & 50–950 ramp

primary

#403FAC

secondary

#C1C186

accent

#D652D5

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403FAC

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

Preview Lab → · Contrast checker → · Palette generator →