#170A3B#170A3B

#170A3B is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.2% C 0.088 H 288.0°. Best body text is #FFFFFF at 18.37:1 contrast (WCAG AA passes).

Color values

HEX	#170A3B
RGB	rgb(23, 10, 59)
HSL	hsl(256, 71%, 14%)
HSV	hsv(256, 83%, 23%)
CMYK	cmyk(61%, 83.1%, 0%, 76.9%)
CIE-LAB	lab(6.46, 21.26, -28.90)
CIE-LCH	lch(6.46, 35.88, 306.33°)
OKLab	oklab(20.22% 0.0272 -0.0836)
OKLCH	oklch(20.22% 0.088 288)
XYZ	xyz(1.2511, 0.7149, 4.2089)
Luminance	0.0072 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170A3B #2E3B0A

analogous

#0A153B #170A3B #2F0A3B

triadic

#170A3B #3B170A #0A3B17

tetradic

#170A3B #3B0A15 #2E3B0A #0A3B2F

square

#170A3B #3B0A15 #2E3B0A #0A3B2F

split-complementary

#170A3B #3B2F0A #153B0A

monochromatic

#0A041A #0A041A #170A3B #2B136F #401CA4

Accessibility & contrast

On white

18.37

#170A3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#170A3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170A3B

18.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170A3B	#FFFFFF	#000000	##FFFFFF
##170A3B	1.00	18.37	1.14	18.37
#FFFFFF	18.37	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153C

Deuteranopia (green-blind)

#00133A

Tritanopia (blue-blind)

#091721

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #170a3b;
/* rgb */ color: rgb(23, 10, 59);
/* oklch */ color: oklch(20.2% 0.088 288.0);

Tailwind

colors: {
  custom: {
    50: '#594a71',
    500: '#170a3b',
    950: '#000000',
  },
}

SCSS

$custom: #170a3b;
$custom-light: #594a71;
$custom-dark: #000000;

JSON

{
  "hex": "#170a3b",
  "rgb": {
    "r": 23,
    "g": 10,
    "b": 59
  },
  "hsl": {
    "h": 255.918,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.20224,
    "c": 0.08793,
    "h": 288
  },
  "luminance": 0.00715
}

Semantic roles & 50–950 ramp

primary

#170A3B

secondary

#637828

accent

#EE3ABE

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040108

muted

#79777B

Preview Lab

Preview with #170A3B

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

Preview Lab → · Contrast checker → · Palette generator →