#17179F#17179F

#17179F is a dark, highly saturated blue. Relative luminance 0.033; OKLCH L 34.2% C 0.204 H 268.7°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#17179F
RGB	rgb(23, 23, 159)
HSL	hsl(240, 75%, 36%)
HSV	hsv(240, 86%, 62%)
CMYK	cmyk(85.5%, 85.5%, 0%, 37.6%)
CIE-LAB	lab(21.20, 48.40, -70.30)
CIE-LCH	lch(21.20, 85.35, 304.55°)
OKLab	oklab(34.19% -0.0047 -0.2035)
OKLCH	oklch(34.19% 0.204 268.7)
XYZ	xyz(6.9156, 3.2973, 33.0661)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17179F #9F9F17

analogous

#175B9F #17179F #5B179F

triadic

#17179F #9F1717 #179F17

tetradic

#17179F #9F175B #9F9F17 #179F5B

square

#17179F #9F175B #9F9F17 #179F5B

split-complementary

#17179F #9F5B17 #5B9F17

monochromatic

#080834 #0F0F6A #17179F #1F1FD4 #4B4BE5

Accessibility & contrast

On white

12.65

#17179F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#17179F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17179F

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17179F	#FFFFFF	#000000	##FFFFFF
##17179F	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA3

Deuteranopia (green-blind)

#002B9D

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #17179f;
/* rgb */ color: rgb(23, 23, 159);
/* oklch */ color: oklch(34.2% 0.204 268.7);

Tailwind

colors: {
  custom: {
    50: '#7259bd',
    500: '#17179f',
    950: '#000000',
  },
}

SCSS

$custom: #17179f;
$custom-light: #7259bd;
$custom-dark: #000000;

JSON

{
  "hex": "#17179f",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 159
  },
  "hsl": {
    "h": 240,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34189,
    "c": 0.20355,
    "h": 268.7
  },
  "luminance": 0.03298
}

Semantic roles & 50–950 ramp

primary

#17179F

secondary

#C7C74B

accent

#F136F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #17179F

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

Preview Lab → · Contrast checker → · Palette generator →