#170A3D#170A3D

#170A3D is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.4% C 0.091 H 287.0°. Best body text is #FFFFFF at 18.31:1 contrast (WCAG AA passes).

Color values

HEX	#170A3D
RGB	rgb(23, 10, 61)
HSL	hsl(255, 72%, 14%)
HSV	hsv(255, 84%, 24%)
CMYK	cmyk(62.3%, 83.6%, 0%, 76.1%)
CIE-LAB	lab(6.65, 22.07, -30.03)
CIE-LCH	lch(6.65, 37.27, 306.31°)
OKLab	oklab(20.45% 0.0266 -0.0868)
OKLCH	oklch(20.45% 0.091 287)
XYZ	xyz(1.3039, 0.7361, 4.4873)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.53

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170A3D #303D0A

analogous

#0A173D #170A3D #310A3D

triadic

#170A3D #3D170A #0A3D17

tetradic

#170A3D #3D0A17 #303D0A #0A3D31

square

#170A3D #3D0A17 #303D0A #0A3D31

split-complementary

#170A3D #3D310A #173D0A

monochromatic

#0A041A #0A041A #170A3D #2B1372 #3F1BA6

Accessibility & contrast

On white

18.31

#170A3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#170A3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170A3D

18.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170A3D	#FFFFFF	#000000	##FFFFFF
##170A3D	1.00	18.31	1.15	18.31
#FFFFFF	18.31	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163E

Deuteranopia (green-blind)

#00133C

Tritanopia (blue-blind)

#071822

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #170a3d;
/* rgb */ color: rgb(23, 10, 61);
/* oklch */ color: oklch(20.4% 0.091 287.0);

Tailwind

colors: {
  custom: {
    50: '#594a73',
    500: '#170a3d',
    950: '#000000',
  },
}

SCSS

$custom: #170a3d;
$custom-light: #594a73;
$custom-dark: #000000;

JSON

{
  "hex": "#170a3d",
  "rgb": {
    "r": 23,
    "g": 10,
    "b": 61
  },
  "hsl": {
    "h": 255.294,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.20445,
    "c": 0.09079,
    "h": 287
  },
  "luminance": 0.00736
}

Semantic roles & 50–950 ramp

primary

#170A3D

secondary

#657A28

accent

#EF39C0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #170A3D

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

Preview Lab → · Contrast checker → · Palette generator →