#170A3C#170A3C

#170A3C is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.3% C 0.089 H 287.5°. Best body text is #FFFFFF at 18.34:1 contrast (WCAG AA passes).

Color values

HEX	#170A3C
RGB	rgb(23, 10, 60)
HSL	hsl(256, 71%, 14%)
HSV	hsv(256, 83%, 24%)
CMYK	cmyk(61.7%, 83.3%, 0%, 76.5%)
CIE-LAB	lab(6.55, 21.67, -29.47)
CIE-LCH	lch(6.55, 36.58, 306.32°)
OKLab	oklab(20.33% 0.0269 -0.0852)
OKLCH	oklch(20.33% 0.089 287.5)
XYZ	xyz(1.2773, 0.7254, 4.3468)
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

#170A3C #2F3C0A

analogous

#0A163C #170A3C #300A3C

triadic

#170A3C #3C170A #0A3C17

tetradic

#170A3C #3C0A16 #2F3C0A #0A3C30

square

#170A3C #3C0A16 #2F3C0A #0A3C30

split-complementary

#170A3C #3C300A #163C0A

monochromatic

#0A041A #0A041A #170A3C #2B1370 #3F1BA5

Accessibility & contrast

On white

18.34

#170A3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170A3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170A3C

18.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170A3C	#FFFFFF	#000000	##FFFFFF
##170A3C	1.00	18.34	1.15	18.34
#FFFFFF	18.34	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163D

Deuteranopia (green-blind)

#00133B

Tritanopia (blue-blind)

#081722

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170a3c;
/* rgb */ color: rgb(23, 10, 60);
/* oklch */ color: oklch(20.3% 0.089 287.5);

Tailwind

colors: {
  custom: {
    50: '#594a72',
    500: '#170a3c',
    950: '#000000',
  },
}

SCSS

$custom: #170a3c;
$custom-light: #594a72;
$custom-dark: #000000;

JSON

{
  "hex": "#170a3c",
  "rgb": {
    "r": 23,
    "g": 10,
    "b": 60
  },
  "hsl": {
    "h": 255.6,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20334,
    "c": 0.08936,
    "h": 287.5
  },
  "luminance": 0.00725
}

Semantic roles & 50–950 ramp

primary

#170A3C

secondary

#647928

accent

#EE3ABF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #170A3C

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

Preview Lab → · Contrast checker → · Palette generator →