#40178E#40178E

#40178E is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.3% C 0.176 H 289.6°. Best body text is #FFFFFF at 12.13:1 contrast (WCAG AA passes).

Color values

HEX	#40178E
RGB	rgb(64, 23, 142)
HSL	hsl(261, 72%, 32%)
HSV	hsv(261, 84%, 56%)
CMYK	cmyk(54.9%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(22.50, 46.61, -57.56)
CIE-LCH	lch(22.50, 74.06, 309.00°)
OKLab	oklab(35.33% 0.059 -0.1655)
OKLCH	oklch(35.33% 0.176 289.6)
XYZ	xyz(7.3018, 3.6554, 25.9068)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40178E #658E17

analogous

#172A8E #40178E #7B178E

triadic

#40178E #8E4017 #178E40

tetradic

#40178E #8E172A #658E17 #178E7B

square

#40178E #8E172A #658E17 #178E7B

split-complementary

#40178E #8E7B17 #2A8E17

monochromatic

#110625 #280E59 #40178E #5820C3 #773FE0

Accessibility & contrast

On white

12.13

#40178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#40178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40178E

12.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40178E	#FFFFFF	#000000	##FFFFFF
##40178E	1.00	12.13	1.73	12.13
#FFFFFF	12.13	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#213B54

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #40178e;
/* rgb */ color: rgb(64, 23, 142);
/* oklch */ color: oklch(35.3% 0.176 289.6);

Tailwind

colors: {
  custom: {
    50: '#7f5bb0',
    500: '#40178e',
    950: '#000000',
  },
}

SCSS

$custom: #40178e;
$custom-light: #7f5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#40178e",
  "rgb": {
    "r": 64,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 260.672,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.35331,
    "c": 0.17576,
    "h": 289.6
  },
  "luminance": 0.03656
}

Semantic roles & 50–950 ramp

primary

#40178E

secondary

#94C040

accent

#EF39B0

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0411

muted

#7C7980

Preview Lab

Preview with #40178E

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

Preview Lab → · Contrast checker → · Palette generator →