#403CA1#403CA1

#403CA1 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.158 H 279.0°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#403CA1
RGB	rgb(64, 60, 161)
HSL	hsl(242, 46%, 43%)
HSV	hsv(242, 63%, 63%)
CMYK	cmyk(60.2%, 62.7%, 0%, 36.9%)
CIE-LAB	lab(31.56, 32.28, -54.35)
CIE-LCH	lch(31.56, 63.21, 300.71°)
OKLab	oklab(42.33% 0.0247 -0.1563)
OKLCH	oklch(42.33% 0.158 279)
XYZ	xyz(10.1612, 6.8942, 34.5066)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.09

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403CA1 #9DA13C

analogous

#3C6AA1 #403CA1 #723CA1

triadic

#403CA1 #A1403C #3CA140

tetradic

#403CA1 #A13C6A #9DA13C #3CA172

square

#403CA1 #A13C6A #9DA13C #3CA172

split-complementary

#403CA1 #A1723C #6AA13C

monochromatic

#1D1B48 #2E2B74 #403CA1 #5D59C1 #8986D2

Accessibility & contrast

On white

8.83

#403CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#403CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CA1

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CA1	#FFFFFF	#000000	##FFFFFF
##403CA1	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00469F

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403ca1;
/* rgb */ color: rgb(64, 60, 161);
/* oklch */ color: oklch(42.3% 0.158 279.0);

Tailwind

colors: {
  custom: {
    50: '#7f72be',
    500: '#403ca1',
    950: '#000000',
  },
}

SCSS

$custom: #403ca1;
$custom-light: #7f72be;
$custom-dark: #000000;

JSON

{
  "hex": "#403ca1",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 161
  },
  "hsl": {
    "h": 242.376,
    "s": 45.701,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42333,
    "c": 0.15824,
    "h": 279
  },
  "luminance": 0.06895
}

Semantic roles & 50–950 ramp

primary

#403CA1

secondary

#B9BC7D

accent

#D552D0

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403CA1

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

Preview Lab → · Contrast checker → · Palette generator →