#170B3F#170B3F

#170B3F is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.8% C 0.092 H 285.8°. Best body text is #FFFFFF at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#170B3F
RGB	rgb(23, 11, 63)
HSL	hsl(254, 70%, 15%)
HSV	hsv(254, 83%, 25%)
CMYK	cmyk(63.5%, 82.5%, 0%, 75.3%)
CIE-LAB	lab(7.05, 22.34, -30.82)
CIE-LCH	lch(7.05, 38.06, 305.94°)
OKLab	oklab(20.83% 0.0251 -0.0889)
OKLCH	oklch(20.83% 0.092 285.8)
XYZ	xyz(1.3700, 0.7803, 4.7801)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Night Blue

#040348

ΔE00 4.23

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B3F #333F0B

analogous

#0B193F #170B3F #310B3F

triadic

#170B3F #3F170B #0B3F17

tetradic

#170B3F #3F0B19 #333F0B #0B3F31

square

#170B3F #3F0B19 #333F0B #0B3F31

split-complementary

#170B3F #3F310B #193F0B

monochromatic

#0A051A #0A051A #170B3F #2A1473 #3D1DA7

Accessibility & contrast

On white

18.17

#170B3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#170B3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B3F

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B3F	#FFFFFF	#000000	##FFFFFF
##170B3F	1.00	18.17	1.16	18.17
#FFFFFF	18.17	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001741

Deuteranopia (green-blind)

#00143E

Tritanopia (blue-blind)

#051924

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #170b3f;
/* rgb */ color: rgb(23, 11, 63);
/* oklch */ color: oklch(20.8% 0.092 285.8);

Tailwind

colors: {
  custom: {
    50: '#5a4b75',
    500: '#170b3f',
    950: '#000000',
  },
}

SCSS

$custom: #170b3f;
$custom-light: #5a4b75;
$custom-dark: #000000;

JSON

{
  "hex": "#170b3f",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 63
  },
  "hsl": {
    "h": 253.846,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.20826,
    "c": 0.09236,
    "h": 285.8
  },
  "luminance": 0.0078
}

Semantic roles & 50–950 ramp

primary

#170B3F

secondary

#697C2A

accent

#ED3BC4

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #170B3F

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

Preview Lab → · Contrast checker → · Palette generator →