#170C3B#170C3B

#170C3B is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.6% C 0.085 H 287.1°. Best body text is #FFFFFF at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#170C3B
RGB	rgb(23, 12, 59)
HSL	hsl(254, 66%, 14%)
HSV	hsv(254, 80%, 23%)
CMYK	cmyk(61%, 79.7%, 0%, 76.9%)
CIE-LAB	lab(6.87, 20.18, -28.23)
CIE-LCH	lch(6.87, 34.70, 305.57°)
OKLab	oklab(20.56% 0.025 -0.0814)
OKLCH	oklch(20.56% 0.085 287.1)
XYZ	xyz(1.2740, 0.7608, 4.2165)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170C3B #303B0C

analogous

#0C193B #170C3B #2F0C3B

triadic

#170C3B #3B170C #0C3B17

tetradic

#170C3B #3B0C19 #303B0C #0C3B2F

square

#170C3B #3B0C19 #303B0C #0C3B2F

split-complementary

#170C3B #3B2F0C #193B0C

monochromatic

#0A0519 #0A0519 #170C3B #2B166E #3F21A1

Accessibility & contrast

On white

18.23

#170C3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170C3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170C3B

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170C3B	#FFFFFF	#000000	##FFFFFF
##170C3B	1.00	18.23	1.15	18.23
#FFFFFF	18.23	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163C

Deuteranopia (green-blind)

#00143A

Tritanopia (blue-blind)

#091822

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170c3b;
/* rgb */ color: rgb(23, 12, 59);
/* oklch */ color: oklch(20.6% 0.085 287.1);

Tailwind

colors: {
  custom: {
    50: '#594b71',
    500: '#170c3b',
    950: '#000000',
  },
}

SCSS

$custom: #170c3b;
$custom-light: #594b71;
$custom-dark: #000000;

JSON

{
  "hex": "#170c3b",
  "rgb": {
    "r": 23,
    "g": 12,
    "b": 59
  },
  "hsl": {
    "h": 254.043,
    "s": 66.197,
    "l": 13.922
  },
  "oklch": {
    "l": 0.20557,
    "c": 0.08515,
    "h": 287.1
  },
  "luminance": 0.00761
}

Semantic roles & 50–950 ramp

primary

#170C3B

secondary

#65772C

accent

#E93FC1

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #170C3B

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

Preview Lab → · Contrast checker → · Palette generator →