#40409F#40409F

#40409F is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.9% C 0.150 H 278.0°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#40409F
RGB	rgb(64, 64, 159)
HSL	hsl(240, 43%, 44%)
HSV	hsv(240, 60%, 62%)
CMYK	cmyk(59.7%, 59.7%, 0%, 37.6%)
CIE-LAB	lab(32.39, 29.06, -51.80)
CIE-LCH	lch(32.39, 59.39, 299.29°)
OKLab	oklab(42.89% 0.0209 -0.1488)
OKLCH	oklch(42.89% 0.15 278)
XYZ	xyz(10.2038, 7.2592, 33.6576)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40409F #9F9F40

analogous

#406F9F #40409F #6F409F

triadic

#40409F #9F4040 #409F40

tetradic

#40409F #9F406F #9F9F40 #409F6F

square

#40409F #9F406F #9F9F40 #409F6F

split-complementary

#40409F #9F6F40 #6F9F40

monochromatic

#1D1D48 #2E2E73 #40409F #5E5EBE #8A8AD0

Accessibility & contrast

On white

8.56

#40409F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#40409F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40409F

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40409F	#FFFFFF	#000000	##FFFFFF
##40409F	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A2

Deuteranopia (green-blind)

#00489D

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40409f;
/* rgb */ color: rgb(64, 64, 159);
/* oklch */ color: oklch(42.9% 0.150 278.0);

Tailwind

colors: {
  custom: {
    50: '#7e75bc',
    500: '#40409f',
    950: '#000000',
  },
}

SCSS

$custom: #40409f;
$custom-light: #7e75bc;
$custom-dark: #000000;

JSON

{
  "hex": "#40409f",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 159
  },
  "hsl": {
    "h": 240,
    "s": 42.601,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42891,
    "c": 0.15024,
    "h": 278
  },
  "luminance": 0.0726
}

Semantic roles & 50–950 ramp

primary

#40409F

secondary

#BBBB80

accent

#D255D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #40409F

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

Preview Lab → · Contrast checker → · Palette generator →