#170A39#170A39

#170A39 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.0% C 0.085 H 289.0°. Best body text is #FFFFFF at 18.44:1 contrast (WCAG AA passes).

Color values

HEX	#170A39
RGB	rgb(23, 10, 57)
HSL	hsl(257, 70%, 13%)
HSV	hsv(257, 82%, 22%)
CMYK	cmyk(59.6%, 82.5%, 0%, 77.6%)
CIE-LAB	lab(6.27, 20.42, -27.75)
CIE-LCH	lch(6.27, 34.46, 306.35°)
OKLab	oklab(20.01% 0.0277 -0.0804)
OKLCH	oklch(20.01% 0.085 289)
XYZ	xyz(1.2002, 0.6946, 3.9409)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170A39 #2C390A

analogous

#0A1439 #170A39 #2E0A39

triadic

#170A39 #39170A #0A3917

tetradic

#170A39 #390A14 #2C390A #0A392E

square

#170A39 #390A14 #2C390A #0A392E

split-complementary

#170A39 #392E0A #14390A

monochromatic

#0B051A #0B051A #170A39 #2C136D #411CA1

Accessibility & contrast

On white

18.44

#170A39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#170A39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170A39

18.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170A39	#FFFFFF	#000000	##FFFFFF
##170A39	1.00	18.44	1.14	18.44
#FFFFFF	18.44	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153A

Deuteranopia (green-blind)

#001338

Tritanopia (blue-blind)

#0B1620

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #170a39;
/* rgb */ color: rgb(23, 10, 57);
/* oklch */ color: oklch(20.0% 0.085 289.0);

Tailwind

colors: {
  custom: {
    50: '#584a70',
    500: '#170a39',
    950: '#000000',
  },
}

SCSS

$custom: #170a39;
$custom-light: #584a70;
$custom-dark: #000000;

JSON

{
  "hex": "#170a39",
  "rgb": {
    "r": 23,
    "g": 10,
    "b": 57
  },
  "hsl": {
    "h": 256.596,
    "s": 70.149,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20006,
    "c": 0.08504,
    "h": 289
  },
  "luminance": 0.00695
}

Semantic roles & 50–950 ramp

primary

#170A39

secondary

#617628

accent

#ED3BBC

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040107

muted

#79777A

Preview Lab

Preview with #170A39

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

Preview Lab → · Contrast checker → · Palette generator →