#40166B#40166B

#40166B is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.8% C 0.137 H 301.2°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#40166B
RGB	rgb(64, 22, 107)
HSL	hsl(270, 66%, 25%)
HSV	hsv(270, 79%, 42%)
CMYK	cmyk(40.2%, 79.4%, 0%, 58%)
CIE-LAB	lab(18.91, 37.56, -41.16)
CIE-LCH	lch(18.91, 55.72, 312.38°)
OKLab	oklab(31.79% 0.0712 -0.1175)
OKLCH	oklch(31.79% 0.137 301.2)
XYZ	xyz(5.0545, 2.7253, 14.1668)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40166B #416B16

analogous

#16176B #40166B #6A166B

triadic

#40166B #6B4016 #166B40

tetradic

#40166B #6B1617 #416B16 #166B6A

square

#40166B #6B1617 #416B16 #166B6A

split-complementary

#40166B #6B6A16 #176B16

monochromatic

#0F0519 #220C38 #40166B #5E209E #7D2BD1

Accessibility & contrast

On white

13.59

#40166B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#40166B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40166B

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40166B	#FFFFFF	#000000	##FFFFFF
##40166B	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6D

Deuteranopia (green-blind)

#002D69

Tritanopia (blue-blind)

#362C3F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #40166b;
/* rgb */ color: rgb(64, 22, 107);
/* oklch */ color: oklch(31.8% 0.137 301.2);

Tailwind

colors: {
  custom: {
    50: '#7a5896',
    500: '#40166b',
    950: '#000000',
  },
}

SCSS

$custom: #40166b;
$custom-light: #7a5896;
$custom-dark: #000000;

JSON

{
  "hex": "#40166b",
  "rgb": {
    "r": 64,
    "g": 22,
    "b": 107
  },
  "hsl": {
    "h": 269.647,
    "s": 65.891,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31788,
    "c": 0.1374,
    "h": 301.2
  },
  "luminance": 0.02725
}

Semantic roles & 50–950 ramp

primary

#40166B

secondary

#6FA13B

accent

#E93F95

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#0A030D

muted

#7C787E

Preview Lab

Preview with #40166B

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

Preview Lab → · Contrast checker → · Palette generator →