#170C39#170C39

#170C39 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.3% C 0.082 H 288.0°. Best body text is #FFFFFF at 18.29:1 contrast (WCAG AA passes).

Color values

HEX	#170C39
RGB	rgb(23, 12, 57)
HSL	hsl(255, 65%, 14%)
HSV	hsv(255, 79%, 22%)
CMYK	cmyk(59.6%, 78.9%, 0%, 77.6%)
CIE-LAB	lab(6.69, 19.37, -27.08)
CIE-LCH	lch(6.69, 33.30, 305.58°)
OKLab	oklab(20.35% 0.0254 -0.0781)
OKLCH	oklch(20.35% 0.082 288)
XYZ	xyz(1.2231, 0.7405, 3.9486)
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

#170C39 #2E390C

analogous

#0C1739 #170C39 #2D0C39

triadic

#170C39 #39170C #0C3917

tetradic

#170C39 #390C17 #2E390C #0C392D

square

#170C39 #390C17 #2E390C #0C392D

split-complementary

#170C39 #392D0C #17390C

monochromatic

#0A0519 #0A0519 #170C39 #2B176C #40219E

Accessibility & contrast

On white

18.29

#170C39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170C39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170C39

18.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170C39	#FFFFFF	#000000	##FFFFFF
##170C39	1.00	18.29	1.15	18.29
#FFFFFF	18.29	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163A

Deuteranopia (green-blind)

#001438

Tritanopia (blue-blind)

#0A1721

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170c39;
/* rgb */ color: rgb(23, 12, 57);
/* oklch */ color: oklch(20.3% 0.082 288.0);

Tailwind

colors: {
  custom: {
    50: '#584b70',
    500: '#170c39',
    950: '#000000',
  },
}

SCSS

$custom: #170c39;
$custom-light: #584b70;
$custom-dark: #000000;

JSON

{
  "hex": "#170c39",
  "rgb": {
    "r": 23,
    "g": 12,
    "b": 57
  },
  "hsl": {
    "h": 254.667,
    "s": 65.217,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20346,
    "c": 0.08216,
    "h": 288
  },
  "luminance": 0.00741
}

Semantic roles & 50–950 ramp

primary

#170C39

secondary

#63752C

accent

#E840BF

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040107

muted

#79777A

Preview Lab

Preview with #170C39

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

Preview Lab → · Contrast checker → · Palette generator →