#40178F#40178F

#40178F is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.4% C 0.177 H 289.4°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#40178F
RGB	rgb(64, 23, 143)
HSL	hsl(261, 72%, 33%)
HSV	hsv(261, 84%, 56%)
CMYK	cmyk(55.2%, 83.9%, 0%, 43.9%)
CIE-LAB	lab(22.60, 46.89, -58.00)
CIE-LCH	lch(22.60, 74.58, 308.95°)
OKLab	oklab(35.44% 0.0587 -0.1669)
OKLCH	oklch(35.44% 0.177 289.4)
XYZ	xyz(7.3772, 3.6856, 26.3039)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40178F #668F17

analogous

#172A8F #40178F #7C178F

triadic

#40178F #8F4017 #178F40

tetradic

#40178F #8F172A #668F17 #178F7C

square

#40178F #8F172A #668F17 #178F7C

split-complementary

#40178F #8F7C17 #2A8F17

monochromatic

#110626 #280F5A #40178F #581FC4 #7740E0

Accessibility & contrast

On white

12.09

#40178F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#40178F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40178F

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40178F	#FFFFFF	#000000	##FFFFFF
##40178F	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#00338D

Tritanopia (blue-blind)

#203C54

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #40178f;
/* rgb */ color: rgb(64, 23, 143);
/* oklch */ color: oklch(35.4% 0.177 289.4);

Tailwind

colors: {
  custom: {
    50: '#7f5bb1',
    500: '#40178f',
    950: '#000000',
  },
}

SCSS

$custom: #40178f;
$custom-light: #7f5bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#40178f",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 143
  },
  "hsl": {
    "h": 260.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35435,
    "c": 0.17688,
    "h": 289.4
  },
  "luminance": 0.03686
}

Semantic roles & 50–950 ramp

primary

#40178F

secondary

#95C141

accent

#EF39B1

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0411

muted

#7C7980

Preview Lab

Preview with #40178F

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

Preview Lab → · Contrast checker → · Palette generator →