#170B43#170B43

#170B43 is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.3% C 0.098 H 284.2°. Best body text is #FFFFFF at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#170B43
RGB	rgb(23, 11, 67)
HSL	hsl(253, 72%, 15%)
HSV	hsv(253, 84%, 26%)
CMYK	cmyk(65.7%, 83.6%, 0%, 73.7%)
CIE-LAB	lab(7.47, 23.87, -32.98)
CIE-LCH	lch(7.47, 40.71, 305.89°)
OKLab	oklab(21.28% 0.024 -0.0951)
OKLCH	oklch(21.28% 0.098 284.2)
XYZ	xyz(1.4858, 0.8267, 5.3904)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170B43 #37430B

analogous

#0B1B43 #170B43 #330B43

triadic

#170B43 #43170B #0B4317

tetradic

#170B43 #430B1B #37430B #0B4333

square

#170B43 #430B1B #37430B #0B4333

split-complementary

#170B43 #43330B #1B430B

monochromatic

#09041A #09041A #170B43 #291478 #3B1CAC

Accessibility & contrast

On white

18.02

#170B43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#170B43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170B43

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170B43	#FFFFFF	#000000	##FFFFFF
##170B43	1.00	18.02	1.17	18.02
#FFFFFF	18.02	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001845

Deuteranopia (green-blind)

#001542

Tritanopia (blue-blind)

#021B26

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #170b43;
/* rgb */ color: rgb(23, 11, 67);
/* oklch */ color: oklch(21.3% 0.098 284.2);

Tailwind

colors: {
  custom: {
    50: '#5b4b78',
    500: '#170b43',
    950: '#000000',
  },
}

SCSS

$custom: #170b43;
$custom-light: #5b4b78;
$custom-dark: #000000;

JSON

{
  "hex": "#170b43",
  "rgb": {
    "r": 23,
    "g": 11,
    "b": 67
  },
  "hsl": {
    "h": 252.857,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.21278,
    "c": 0.09804,
    "h": 284.2
  },
  "luminance": 0.00827
}

Semantic roles & 50–950 ramp

primary

#170B43

secondary

#6D802A

accent

#EF39C8

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #170B43

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

Preview Lab → · Contrast checker → · Palette generator →