#17186F#17186F

#17186F is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.144 H 272.0°. Best body text is #FFFFFF at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#17186F
RGB	rgb(23, 24, 111)
HSL	hsl(239, 66%, 26%)
HSV	hsv(239, 79%, 44%)
CMYK	cmyk(79.3%, 78.4%, 0%, 56.5%)
CIE-LAB	lab(15.40, 31.78, -49.69)
CIE-LCH	lch(15.40, 58.98, 302.60°)
OKLab	oklab(28.42% 0.0051 -0.1438)
OKLCH	oklch(28.42% 0.144 272)
XYZ	xyz(3.5483, 1.9827, 15.2315)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17186F #6F6E17

analogous

#17446F #17186F #42176F

triadic

#17186F #6F1718 #186F17

tetradic

#17186F #6F1744 #6F6E17 #176F42

square

#17186F #6F1744 #6F6E17 #176F42

split-complementary

#17186F #6F4217 #446F17

monochromatic

#050519 #0C0D3C #17186F #2223A2 #2D2FD3

Accessibility & contrast

On white

15.04

#17186F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#17186F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17186F

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17186F	#FFFFFF	#000000	##FFFFFF
##17186F	1.00	15.04	1.40	15.04
#FFFFFF	15.04	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B72

Deuteranopia (green-blind)

#00226D

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #17186f;
/* rgb */ color: rgb(23, 24, 111);
/* oklch */ color: oklch(28.4% 0.144 272.0);

Tailwind

colors: {
  custom: {
    50: '#655699',
    500: '#17186f',
    950: '#000000',
  },
}

SCSS

$custom: #17186f;
$custom-light: #655699;
$custom-dark: #000000;

JSON

{
  "hex": "#17186f",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 111
  },
  "hsl": {
    "h": 239.318,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.28416,
    "c": 0.14393,
    "h": 272
  },
  "luminance": 0.01983
}

Semantic roles & 50–950 ramp

primary

#17186F

secondary

#A5A43D

accent

#E73FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #17186F

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

Preview Lab → · Contrast checker → · Palette generator →