#17105D#17105D

#17105D is a dark, vivid blue. Relative luminance 0.013; OKLCH L 25.1% C 0.128 H 275.9°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#17105D
RGB	rgb(23, 16, 93)
HSL	hsl(245, 71%, 21%)
HSV	hsv(245, 83%, 36%)
CMYK	cmyk(75.3%, 82.8%, 0%, 63.5%)
CIE-LAB	lab(11.57, 30.13, -44.12)
CIE-LCH	lch(11.57, 53.43, 304.33°)
OKLab	oklab(25.09% 0.0132 -0.1275)
OKLCH	oklch(25.09% 0.128 275.9)
XYZ	xyz(2.5138, 1.3428, 10.4805)
Luminance	0.0134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17105D #565D10

analogous

#10305D #17105D #3E105D

triadic

#17105D #5D1710 #105D17

tetradic

#17105D #5D1030 #565D10 #105D3E

square

#17105D #5D1030 #565D10 #105D3E

split-complementary

#17105D #5D3E10 #305D10

monochromatic

#06041A #0A0729 #17105D #241991 #3122C5

Accessibility & contrast

On white

16.55

#17105D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#17105D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17105D

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17105D	#FFFFFF	#000000	##FFFFFF
##17105D	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225F

Deuteranopia (green-blind)

#001B5C

Tritanopia (blue-blind)

#002736

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #17105d;
/* rgb */ color: rgb(23, 16, 93);
/* oklch */ color: oklch(25.1% 0.128 275.9);

Tailwind

colors: {
  custom: {
    50: '#61508c',
    500: '#17105d',
    950: '#000000',
  },
}

SCSS

$custom: #17105d;
$custom-light: #61508c;
$custom-dark: #000000;

JSON

{
  "hex": "#17105d",
  "rgb": {
    "r": 23,
    "g": 16,
    "b": 93
  },
  "hsl": {
    "h": 245.455,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.25087,
    "c": 0.12823,
    "h": 275.9
  },
  "luminance": 0.01343
}

Semantic roles & 50–950 ramp

primary

#17105D

secondary

#8D9633

accent

#ED3ADD

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #17105D

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

Preview Lab → · Contrast checker → · Palette generator →