#403A99#403A99

#403A99 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.3% C 0.150 H 280.4°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#403A99
RGB	rgb(64, 58, 153)
HSL	hsl(244, 45%, 41%)
HSV	hsv(244, 62%, 60%)
CMYK	cmyk(58.2%, 62.1%, 0%, 40%)
CIE-LAB	lab(30.44, 30.86, -51.33)
CIE-LCH	lch(30.44, 59.89, 301.02°)
OKLab	oklab(41.3% 0.0271 -0.1474)
OKLCH	oklch(41.3% 0.15 280.4)
XYZ	xyz(9.3754, 6.4154, 30.8751)
Luminance	0.0642 (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

#403A99 #93993A

analogous

#3A6499 #403A99 #703A99

triadic

#403A99 #99403A #3A9940

tetradic

#403A99 #993A64 #93993A #3A9970

square

#403A99 #993A64 #93993A #3A9970

split-complementary

#403A99 #99703A #64993A

monochromatic

#1B1840 #2D296D #403A99 #5953BE #847FCE

Accessibility & contrast

On white

9.20

#403A99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#403A99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403A99

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403A99	#FFFFFF	#000000	##FFFFFF
##403A99	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9C

Deuteranopia (green-blind)

#004497

Tritanopia (blue-blind)

#0D5164

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #403a99;
/* rgb */ color: rgb(64, 58, 153);
/* oklch */ color: oklch(41.3% 0.150 280.4);

Tailwind

colors: {
  custom: {
    50: '#7e70b8',
    500: '#403a99',
    950: '#000000',
  },
}

SCSS

$custom: #403a99;
$custom-light: #7e70b8;
$custom-dark: #000000;

JSON

{
  "hex": "#403a99",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 153
  },
  "hsl": {
    "h": 243.789,
    "s": 45.024,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41304,
    "c": 0.1499,
    "h": 280.4
  },
  "luminance": 0.06416
}

Semantic roles & 50–950 ramp

primary

#403A99

secondary

#B4B877

accent

#D553CD

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #403A99

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

Preview Lab → · Contrast checker → · Palette generator →