#170B3B#170B3B

#170B3B is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.4% C 0.087 H 287.6°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#170B3B
RGB	rgb(23, 11, 59)
HSL	hsl(255, 69%, 14%)
HSV	hsv(255, 81%, 23%)
CMYK	cmyk(61%, 81.4%, 0%, 76.9%)
CIE-LAB	lab(6.66, 20.74, -28.58)
CIE-LCH	lch(6.66, 35.31, 305.97°)
OKLab	oklab(20.39% 0.0261 -0.0825)
OKLCH	oklch(20.39% 0.087 287.6)
XYZ	xyz(1.2622, 0.7372, 4.2126)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B3B #2F3B0B

analogous

#0B173B #170B3B #2F0B3B

triadic

#170B3B #3B170B #0B3B17

tetradic

#170B3B #3B0B17 #2F3B0B #0B3B2F

square

#170B3B #3B0B17 #2F3B0B #0B3B2F

split-complementary

#170B3B #3B2F0B #173B0B

monochromatic

#0A051A #0A051A #170B3B #2B156F #3F1EA2

Accessibility & contrast

On white

18.30

#170B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B3B

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B3B	#FFFFFF	#000000	##FFFFFF
##170B3B	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163C

Deuteranopia (green-blind)

#00133A

Tritanopia (blue-blind)

#091822

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170b3b;
/* rgb */ color: rgb(23, 11, 59);
/* oklch */ color: oklch(20.4% 0.087 287.6);

Tailwind

colors: {
  custom: {
    50: '#594b71',
    500: '#170b3b',
    950: '#000000',
  },
}

SCSS

$custom: #170b3b;
$custom-light: #594b71;
$custom-dark: #000000;

JSON

{
  "hex": "#170b3b",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 59
  },
  "hsl": {
    "h": 255,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20387,
    "c": 0.08656,
    "h": 287.6
  },
  "luminance": 0.00737
}

Semantic roles & 50–950 ramp

primary

#170B3B

secondary

#64782A

accent

#EB3CC0

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #170B3B

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

Preview Lab → · Contrast checker → · Palette generator →