#170B3A#170B3A

#170B3A is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.3% C 0.085 H 288.0°. Best body text is #FFFFFF at 18.33:1 contrast (WCAG AA passes).

Color values

HEX	#170B3A
RGB	rgb(23, 11, 58)
HSL	hsl(255, 68%, 14%)
HSV	hsv(255, 81%, 23%)
CMYK	cmyk(60.3%, 81%, 0%, 77.3%)
CIE-LAB	lab(6.57, 20.33, -28.00)
CIE-LCH	lch(6.57, 34.60, 305.97°)
OKLab	oklab(20.28% 0.0264 -0.0809)
OKLCH	oklch(20.28% 0.085 288)
XYZ	xyz(1.2365, 0.7269, 4.0773)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B3A #2E3A0B

analogous

#0B163A #170B3A #2E0B3A

triadic

#170B3A #3A170B #0B3A17

tetradic

#170B3A #3A0B16 #2E3A0B #0B3A2E

square

#170B3A #3A0B16 #2E3A0B #0B3A2E

split-complementary

#170B3A #3A2E0B #163A0B

monochromatic

#0A051A #0A051A #170B3A #2B156D #401FA1

Accessibility & contrast

On white

18.33

#170B3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170B3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B3A

18.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B3A	#FFFFFF	#000000	##FFFFFF
##170B3A	1.00	18.33	1.15	18.33
#FFFFFF	18.33	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#0A1721

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170b3a;
/* rgb */ color: rgb(23, 11, 58);
/* oklch */ color: oklch(20.3% 0.085 288.0);

Tailwind

colors: {
  custom: {
    50: '#584b71',
    500: '#170b3a',
    950: '#000000',
  },
}

SCSS

$custom: #170b3a;
$custom-light: #584b71;
$custom-dark: #000000;

JSON

{
  "hex": "#170b3a",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 58
  },
  "hsl": {
    "h": 255.319,
    "s": 68.116,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20279,
    "c": 0.08509,
    "h": 288
  },
  "luminance": 0.00727
}

Semantic roles & 50–950 ramp

primary

#170B3A

secondary

#63772A

accent

#EB3DBF

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040107

muted

#79777A

Preview Lab

Preview with #170B3A

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

Preview Lab → · Contrast checker → · Palette generator →