#17175B#17175B

#17175B is a dark, moderate blue. Relative luminance 0.015; OKLCH L 26.0% C 0.118 H 274.5°. Best body text is #FFFFFF at 16.03:1 contrast (WCAG AA passes).

Color values

HEX	#17175B
RGB	rgb(23, 23, 91)
HSL	hsl(240, 60%, 22%)
HSV	hsv(240, 75%, 36%)
CMYK	cmyk(74.7%, 74.7%, 0%, 64.3%)
CIE-LAB	lab(12.92, 24.97, -40.55)
CIE-LCH	lch(12.92, 47.62, 301.62°)
OKLab	oklab(25.98% 0.0093 -0.1172)
OKLCH	oklch(25.98% 0.118 274.5)
XYZ	xyz(2.5474, 1.5500, 10.0604)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17175B #5B5B17

analogous

#17395B #17175B #39175B

triadic

#17175B #5B1717 #175B17

tetradic

#17175B #5B1739 #5B5B17 #175B39

square

#17175B #5B1739 #5B5B17 #175B39

split-complementary

#17175B #5B3917 #395B17

monochromatic

#060618 #0B0B2A #17175B #23238C #3030BD

Accessibility & contrast

On white

16.03

#17175B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#17175B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17175B

16.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17175B	#FFFFFF	#000000	##FFFFFF
##17175B	1.00	16.03	1.31	16.03
#FFFFFF	16.03	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255D

Deuteranopia (green-blind)

#001E5A

Tritanopia (blue-blind)

#002A37

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #17175b;
/* rgb */ color: rgb(23, 23, 91);
/* oklch */ color: oklch(26.0% 0.118 274.5);

Tailwind

colors: {
  custom: {
    50: '#60548a',
    500: '#17175b',
    950: '#000000',
  },
}

SCSS

$custom: #17175b;
$custom-light: #60548a;
$custom-dark: #000000;

JSON

{
  "hex": "#17175b",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 91
  },
  "hsl": {
    "h": 240,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.25979,
    "c": 0.11756,
    "h": 274.5
  },
  "luminance": 0.0155
}

Semantic roles & 50–950 ramp

primary

#17175B

secondary

#92923C

accent

#E345E3

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #17175B

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

Preview Lab → · Contrast checker → · Palette generator →