#170837#170837

#170837 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.5% C 0.085 H 291.0°. Best body text is #FFFFFF at 18.64:1 contrast (WCAG AA passes).

Color values

HEX	#170837
RGB	rgb(23, 8, 55)
HSL	hsl(259, 75%, 12%)
HSV	hsv(259, 85%, 22%)
CMYK	cmyk(58.2%, 85.5%, 0%, 78.4%)
CIE-LAB	lab(5.71, 20.55, -27.22)
CIE-LCH	lch(5.71, 34.10, 307.05°)
OKLab	oklab(19.45% 0.0305 -0.0794)
OKLCH	oklch(19.45% 0.085 291)
XYZ	xyz(1.1296, 0.6316, 3.6761)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170837 #283708

analogous

#081137 #170837 #2F0837

triadic

#170837 #371708 #083717

tetradic

#170837 #370811 #283708 #08372F

square

#170837 #370811 #283708 #08372F

split-complementary

#170837 #372F08 #113708

monochromatic

#0B041B #0B041B #170837 #2D106C #4418A2

Accessibility & contrast

On white

18.64

#170837 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#170837 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170837

18.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170837	#FFFFFF	#000000	##FFFFFF
##170837	1.00	18.64	1.13	18.64
#FFFFFF	18.64	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001338

Deuteranopia (green-blind)

#001236

Tritanopia (blue-blind)

#0C141E

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #170837;
/* rgb */ color: rgb(23, 8, 55);
/* oklch */ color: oklch(19.5% 0.085 291.0);

Tailwind

colors: {
  custom: {
    50: '#58496e',
    500: '#170837',
    950: '#000000',
  },
}

SCSS

$custom: #170837;
$custom-light: #58496e;
$custom-dark: #000000;

JSON

{
  "hex": "#170837",
  "rgb": {
    "r": 23,
    "g": 8,
    "b": 55
  },
  "hsl": {
    "h": 259.149,
    "s": 74.603,
    "l": 12.353
  },
  "oklch": {
    "l": 0.19451,
    "c": 0.08509,
    "h": 291
  },
  "luminance": 0.00632
}

Semantic roles & 50–950 ramp

primary

#170837

secondary

#5C7625

accent

#F137B6

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030107

muted

#78777A

Preview Lab

Preview with #170837

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

Preview Lab → · Contrast checker → · Palette generator →