#403E9A#403E9A

#403E9A is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.1% C 0.146 H 279.1°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#403E9A
RGB	rgb(64, 62, 154)
HSL	hsl(241, 43%, 42%)
HSV	hsv(241, 60%, 60%)
CMYK	cmyk(58.4%, 59.7%, 0%, 39.6%)
CIE-LAB	lab(31.50, 28.64, -50.21)
CIE-LCH	lch(31.50, 57.80, 299.70°)
OKLab	oklab(42.11% 0.023 -0.1441)
OKLCH	oklch(42.11% 0.146 279.1)
XYZ	xyz(9.6679, 6.8677, 31.3817)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.20

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403E9A #989A3E

analogous

#3E6A9A #403E9A #6E3E9A

triadic

#403E9A #9A403E #3E9A40

tetradic

#403E9A #9A3E6A #989A3E #3E9A6E

square

#403E9A #9A3E6A #989A3E #3E9A6E

split-complementary

#403E9A #9A6E3E #6A9A3E

monochromatic

#1C1B43 #2E2C6E #403E9A #5B59BC #8685CE

Accessibility & contrast

On white

8.85

#403E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#403E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403E9A

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403E9A	#FFFFFF	#000000	##FFFFFF
##403E9A	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9D

Deuteranopia (green-blind)

#004698

Tritanopia (blue-blind)

#0A5466

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403e9a;
/* rgb */ color: rgb(64, 62, 154);
/* oklch */ color: oklch(42.1% 0.146 279.1);

Tailwind

colors: {
  custom: {
    50: '#7e73b8',
    500: '#403e9a',
    950: '#000000',
  },
}

SCSS

$custom: #403e9a;
$custom-light: #7e73b8;
$custom-dark: #000000;

JSON

{
  "hex": "#403e9a",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 154
  },
  "hsl": {
    "h": 241.304,
    "s": 42.593,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42114,
    "c": 0.14593,
    "h": 279.1
  },
  "luminance": 0.06868
}

Semantic roles & 50–950 ramp

primary

#403E9A

secondary

#B7B87C

accent

#D255D0

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0811

muted

#7C7B80

Preview Lab

Preview with #403E9A

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

Preview Lab → · Contrast checker → · Palette generator →