#40289D#40289D

#40289D is a dark, vivid violet. Relative luminance 0.050; OKLCH L 38.8% C 0.177 H 283.9°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#40289D
RGB	rgb(64, 40, 157)
HSL	hsl(252, 59%, 39%)
HSV	hsv(252, 75%, 62%)
CMYK	cmyk(59.2%, 74.5%, 0%, 38.4%)
CIE-LAB	lab(26.85, 42.83, -59.63)
CIE-LCH	lch(26.85, 73.42, 305.69°)
OKLab	oklab(38.83% 0.0425 -0.1718)
OKLCH	oklch(38.83% 0.177 283.9)
XYZ	xyz(8.9571, 5.0413, 32.3928)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40289D #859D28

analogous

#284A9D #40289D #7A289D

triadic

#40289D #9D4028 #289D40

tetradic

#40289D #9D284A #859D28 #289D7A

square

#40289D #9D284A #859D28 #289D7A

split-complementary

#40289D #9D7A28 #4A9D28

monochromatic

#180F3B #2C1C6C #40289D #5536CC #7E67D8

Accessibility & contrast

On white

10.46

#40289D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#40289D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40289D

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40289D	#FFFFFF	#000000	##FFFFFF
##40289D	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A0

Deuteranopia (green-blind)

#003C9B

Tritanopia (blue-blind)

#084860

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #40289d;
/* rgb */ color: rgb(64, 40, 157);
/* oklch */ color: oklch(38.8% 0.177 283.9);

Tailwind

colors: {
  custom: {
    50: '#8065bb',
    500: '#40289d',
    950: '#000000',
  },
}

SCSS

$custom: #40289d;
$custom-light: #8065bb;
$custom-dark: #000000;

JSON

{
  "hex": "#40289d",
  "rgb": {
    "r": 64,
    "g": 40,
    "b": 157
  },
  "hsl": {
    "h": 252.308,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38828,
    "c": 0.17696,
    "h": 283.9
  },
  "luminance": 0.05042
}

Semantic roles & 50–950 ramp

primary

#40289D

secondary

#ACBE62

accent

#E345C2

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #40289D

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

Preview Lab → · Contrast checker → · Palette generator →