#170A3E#170A3E

#170A3E is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.6% C 0.092 H 286.6°. Best body text is #FFFFFF at 18.27:1 contrast (WCAG AA passes).

Color values

HEX	#170A3E
RGB	rgb(23, 10, 62)
HSL	hsl(255, 72%, 14%)
HSV	hsv(255, 84%, 24%)
CMYK	cmyk(62.9%, 83.9%, 0%, 75.7%)
CIE-LAB	lab(6.75, 22.47, -30.59)
CIE-LCH	lch(6.75, 37.96, 306.30°)
OKLab	oklab(20.56% 0.0263 -0.0884)
OKLCH	oklch(20.56% 0.092 286.6)
XYZ	xyz(1.3311, 0.7470, 4.6305)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.31

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170A3E #313E0A

analogous

#0A173E #170A3E #310A3E

triadic

#170A3E #3E170A #0A3E17

tetradic

#170A3E #3E0A17 #313E0A #0A3E31

square

#170A3E #3E0A17 #313E0A #0A3E31

split-complementary

#170A3E #3E310A #173E0A

monochromatic

#0A041A #0A041A #170A3E #2B1373 #3E1BA7

Accessibility & contrast

On white

18.27

#170A3E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170A3E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170A3E

18.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170A3E	#FFFFFF	#000000	##FFFFFF
##170A3E	1.00	18.27	1.15	18.27
#FFFFFF	18.27	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001640

Deuteranopia (green-blind)

#00133D

Tritanopia (blue-blind)

#061823

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170a3e;
/* rgb */ color: rgb(23, 10, 62);
/* oklch */ color: oklch(20.6% 0.092 286.6);

Tailwind

colors: {
  custom: {
    50: '#5a4a74',
    500: '#170a3e',
    950: '#000000',
  },
}

SCSS

$custom: #170a3e;
$custom-light: #5a4a74;
$custom-dark: #000000;

JSON

{
  "hex": "#170a3e",
  "rgb": {
    "r": 23,
    "g": 10,
    "b": 62
  },
  "hsl": {
    "h": 255,
    "s": 72.222,
    "l": 14.118
  },
  "oklch": {
    "l": 0.20557,
    "c": 0.09221,
    "h": 286.6
  },
  "luminance": 0.00747
}

Semantic roles & 50–950 ramp

primary

#170A3E

secondary

#677B28

accent

#EF39C1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #170A3E

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

Preview Lab → · Contrast checker → · Palette generator →