#170B2B#170B2B

#170B2B is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 18.8% C 0.062 H 297.3°. Best body text is #FFFFFF at 18.76:1 contrast (WCAG AA passes).

Color values

HEX	#170B2B
RGB	rgb(23, 11, 43)
HSL	hsl(263, 59%, 11%)
HSV	hsv(263, 74%, 17%)
CMYK	cmyk(46.5%, 74.4%, 0%, 83.1%)
CIE-LAB	lab(5.38, 13.96, -18.83)
CIE-LCH	lch(5.38, 23.45, 306.55°)
OKLab	oklab(18.79% 0.0286 -0.0553)
OKLCH	oklch(18.79% 0.062 297.3)
XYZ	xyz(0.9090, 0.5959, 2.3522)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B2B #1F2B0B

analogous

#0B0F2B #170B2B #270B2B

triadic

#170B2B #2B170B #0B2B17

tetradic

#170B2B #2B0B0F #1F2B0B #0B2B27

square

#170B2B #2B0B0F #1F2B0B #0B2B27

split-complementary

#170B2B #2B270B #0F2B0B

monochromatic

#0D0618 #0D0618 #170B2B #31175C #4B248C

Accessibility & contrast

On white

18.76

#170B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#170B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B2B

18.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B2B	#FFFFFF	#000000	##FFFFFF
##170B2B	1.00	18.76	1.12	18.76
#FFFFFF	18.76	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00122C

Deuteranopia (green-blind)

#02112A

Tritanopia (blue-blind)

#121219

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #170b2b;
/* rgb */ color: rgb(23, 11, 43);
/* oklch */ color: oklch(18.8% 0.062 297.3);

Tailwind

colors: {
  custom: {
    50: '#554b64',
    500: '#170b2b',
    950: '#000000',
  },
}

SCSS

$custom: #170b2b;
$custom-light: #554b64;
$custom-dark: #000000;

JSON

{
  "hex": "#170b2b",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 43
  },
  "hsl": {
    "h": 262.5,
    "s": 59.259,
    "l": 10.588
  },
  "oklch": {
    "l": 0.18789,
    "c": 0.06222,
    "h": 297.3
  },
  "luminance": 0.00596
}

Semantic roles & 50–950 ramp

primary

#170B2B

secondary

#50672B

accent

#E245A8

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#030105

muted

#78777A

Preview Lab

Preview with #170B2B

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

Preview Lab → · Contrast checker → · Palette generator →