#40366B#40366B

#40366B is a dark, moderate violet. Relative luminance 0.048; OKLCH L 37.1% C 0.089 H 290.0°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#40366B
RGB	rgb(64, 54, 107)
HSL	hsl(251, 33%, 32%)
HSV	hsv(251, 50%, 42%)
CMYK	cmyk(40.2%, 49.5%, 0%, 58%)
CIE-LAB	lab(26.13, 18.46, -29.53)
CIE-LCH	lch(26.13, 34.82, 302.01°)
OKLab	oklab(37.06% 0.0304 -0.0834)
OKLCH	oklch(37.06% 0.089 290)
XYZ	xyz(6.0866, 4.7897, 14.5109)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40366B #616B36

analogous

#36476B #40366B #5B366B

triadic

#40366B #6B4036 #366B40

tetradic

#40366B #6B3647 #616B36 #366B5B

square

#40366B #6B3647 #616B36 #366B5B

split-complementary

#40366B #6B5B36 #476B36

monochromatic

#0F0D1A #282142 #40366B #584B94 #7668B3

Accessibility & contrast

On white

10.73

#40366B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#40366B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40366B

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40366B	#FFFFFF	#000000	##FFFFFF
##40366B	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233F6D

Deuteranopia (green-blind)

#233D6A

Tritanopia (blue-blind)

#35404B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #40366b;
/* rgb */ color: rgb(64, 54, 107);
/* oklch */ color: oklch(37.1% 0.089 290.0);

Tailwind

colors: {
  custom: {
    50: '#776d96',
    500: '#40366b',
    950: '#000000',
  },
}

SCSS

$custom: #40366b;
$custom-light: #776d96;
$custom-dark: #000000;

JSON

{
  "hex": "#40366b",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 107
  },
  "hsl": {
    "h": 251.321,
    "s": 32.919,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37058,
    "c": 0.08877,
    "h": 290
  },
  "luminance": 0.0479
}

Semantic roles & 50–950 ramp

primary

#40366B

secondary

#919C61

accent

#C95FB5

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#09070D

muted

#7B7A7E

Preview Lab

Preview with #40366B

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

Preview Lab → · Contrast checker → · Palette generator →