#17186C#17186C

#17186C is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.140 H 272.3°. Best body text is #FFFFFF at 15.18:1 contrast (WCAG AA passes).

Color values

HEX	#17186C
RGB	rgb(23, 24, 108)
HSL	hsl(239, 65%, 26%)
HSV	hsv(239, 79%, 42%)
CMYK	cmyk(78.7%, 77.8%, 0%, 57.6%)
CIE-LAB	lab(15.05, 30.68, -48.31)
CIE-LCH	lch(15.05, 57.23, 302.42°)
OKLab	oklab(28.07% 0.0057 -0.1398)
OKLCH	oklch(28.07% 0.14 272.3)
XYZ	xyz(3.3858, 1.9178, 14.3762)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17186C #6C6B17

analogous

#17426C #17186C #40176C

triadic

#17186C #6C1718 #186C17

tetradic

#17186C #6C1742 #6C6B17 #176C40

square

#17186C #6C1742 #6C6B17 #176C40

split-complementary

#17186C #6C4017 #426C17

monochromatic

#050619 #0C0D3A #17186C #22239E #2C2ED1

Accessibility & contrast

On white

15.18

#17186C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#17186C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17186C

15.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17186C	#FFFFFF	#000000	##FFFFFF
##17186C	1.00	15.18	1.38	15.18
#FFFFFF	15.18	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6E

Deuteranopia (green-blind)

#00226B

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #17186c;
/* rgb */ color: rgb(23, 24, 108);
/* oklch */ color: oklch(28.1% 0.140 272.3);

Tailwind

colors: {
  custom: {
    50: '#645697',
    500: '#17186c',
    950: '#000000',
  },
}

SCSS

$custom: #17186c;
$custom-light: #645697;
$custom-dark: #000000;

JSON

{
  "hex": "#17186c",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 108
  },
  "hsl": {
    "h": 239.294,
    "s": 64.885,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28067,
    "c": 0.13992,
    "h": 272.3
  },
  "luminance": 0.01918
}

Semantic roles & 50–950 ramp

primary

#17186C

secondary

#A2A13D

accent

#E640E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #17186C

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

Preview Lab → · Contrast checker → · Palette generator →