#170540#170540

#170540 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.0% C 0.102 H 287.5°. Best body text is #FFFFFF at 18.55:1 contrast (WCAG AA passes).

Color values

HEX	#170540
RGB	rgb(23, 5, 64)
HSL	hsl(258, 86%, 14%)
HSV	hsv(258, 92%, 25%)
CMYK	cmyk(64.1%, 92.2%, 0%, 74.9%)
CIE-LAB	lab(5.97, 25.88, -33.29)
CIE-LCH	lch(5.97, 42.17, 307.86°)
OKLab	oklab(19.99% 0.0305 -0.0969)
OKLCH	oklch(19.99% 0.102 287.5)
XYZ	xyz(1.3328, 0.6608, 4.9068)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170540 #2E4005

analogous

#051040 #170540 #340540

triadic

#170540 #401705 #054017

tetradic

#170540 #400510 #2E4005 #054034

square

#170540 #400510 #2E4005 #054034

split-complementary

#170540 #403405 #104005

monochromatic

#0A021C #0A021C #170540 #2B0979 #400EB2

Accessibility & contrast

On white

18.55

#170540 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#170540 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170540

18.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170540	#FFFFFF	#000000	##FFFFFF
##170540	1.00	18.55	1.13	18.55
#FFFFFF	18.55	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001542

Deuteranopia (green-blind)

#00123F

Tritanopia (blue-blind)

#051723

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #170540;
/* rgb */ color: rgb(23, 5, 64);
/* oklch */ color: oklch(20.0% 0.102 287.5);

Tailwind

colors: {
  custom: {
    50: '#5a4875',
    500: '#170540',
    950: '#000000',
  },
}

SCSS

$custom: #170540;
$custom-light: #5a4875;
$custom-dark: #000000;

JSON

{
  "hex": "#170540",
  "rgb": {
    "r": 23,
    "g": 5,
    "b": 64
  },
  "hsl": {
    "h": 258.305,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.19995,
    "c": 0.10155,
    "h": 287.5
  },
  "luminance": 0.00661
}

Semantic roles & 50–950 ramp

primary

#170540

secondary

#638120

accent

#FC2CBC

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#040008

muted

#79777B

Preview Lab

Preview with #170540

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

Preview Lab → · Contrast checker → · Palette generator →