#403CA9#403CA9

#403CA9 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.169 H 278.2°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#403CA9
RGB	rgb(64, 60, 169)
HSL	hsl(242, 48%, 45%)
HSV	hsv(242, 64%, 66%)
CMYK	cmyk(62.1%, 64.5%, 0%, 33.7%)
CIE-LAB	lab(32.23, 34.97, -58.08)
CIE-LCH	lch(32.23, 67.80, 301.05°)
OKLab	oklab(43.02% 0.0241 -0.1673)
OKLCH	oklch(43.02% 0.169 278.2)
XYZ	xyz(10.8893, 7.1854, 38.3415)
Luminance	0.0719 (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

#403CA9 #A5A93C

analogous

#3C6EA9 #403CA9 #773CA9

triadic

#403CA9 #A9403C #3CA940

tetradic

#403CA9 #A93C6E #A5A93C #3CA977

square

#403CA9 #A93C6E #A5A93C #3CA977

split-complementary

#403CA9 #A9773C #6EA93C

monochromatic

#1E1C4F #2F2C7C #403CA9 #615DC5 #8D8AD5

Accessibility & contrast

On white

8.62

#403CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#403CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CA9

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CA9	#FFFFFF	#000000	##FFFFFF
##403CA9	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AC

Deuteranopia (green-blind)

#0047A7

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403ca9;
/* rgb */ color: rgb(64, 60, 169);
/* oklch */ color: oklch(43.0% 0.169 278.2);

Tailwind

colors: {
  custom: {
    50: '#8172c3',
    500: '#403ca9',
    950: '#000000',
  },
}

SCSS

$custom: #403ca9;
$custom-light: #8172c3;
$custom-dark: #000000;

JSON

{
  "hex": "#403ca9",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 169
  },
  "hsl": {
    "h": 242.202,
    "s": 47.598,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43022,
    "c": 0.169,
    "h": 278.2
  },
  "luminance": 0.07186
}

Semantic roles & 50–950 ramp

primary

#403CA9

secondary

#BEC081

accent

#D751D2

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403CA9

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

Preview Lab → · Contrast checker → · Palette generator →