#17105B#17105B

#17105B is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.8% C 0.126 H 276.3°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#17105B
RGB	rgb(23, 16, 91)
HSL	hsl(246, 70%, 21%)
HSV	hsv(246, 82%, 36%)
CMYK	cmyk(74.7%, 82.4%, 0%, 64.3%)
CIE-LAB	lab(11.33, 29.42, -43.18)
CIE-LCH	lch(11.33, 52.25, 304.27°)
OKLab	oklab(24.85% 0.0137 -0.1248)
OKLCH	oklch(24.85% 0.126 276.3)
XYZ	xyz(2.4264, 1.3078, 10.0201)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17105B #545B10

analogous

#102E5B #17105B #3C105B

triadic

#17105B #5B1710 #105B17

tetradic

#17105B #5B102E #545B10 #105B3C

square

#17105B #5B102E #545B10 #105B3C

split-complementary

#17105B #5B3C10 #2E5B10

monochromatic

#07051A #0A0727 #17105B #24198F #3122C3

Accessibility & contrast

On white

16.65

#17105B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#17105B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17105B

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17105B	#FFFFFF	#000000	##FFFFFF
##17105B	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215D

Deuteranopia (green-blind)

#001B5A

Tritanopia (blue-blind)

#002635

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #17105b;
/* rgb */ color: rgb(23, 16, 91);
/* oklch */ color: oklch(24.8% 0.126 276.3);

Tailwind

colors: {
  custom: {
    50: '#60508a',
    500: '#17105b',
    950: '#000000',
  },
}

SCSS

$custom: #17105b;
$custom-light: #60508a;
$custom-dark: #000000;

JSON

{
  "hex": "#17105b",
  "rgb": {
    "r": 23,
    "g": 16,
    "b": 91
  },
  "hsl": {
    "h": 245.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.24846,
    "c": 0.12555,
    "h": 276.3
  },
  "luminance": 0.01308
}

Semantic roles & 50–950 ramp

primary

#17105B

secondary

#8B9433

accent

#ED3BDC

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #17105B

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

Preview Lab → · Contrast checker → · Palette generator →