#17186D#17186D

#17186D is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.141 H 272.2°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#17186D
RGB	rgb(23, 24, 109)
HSL	hsl(239, 65%, 26%)
HSV	hsv(239, 79%, 43%)
CMYK	cmyk(78.9%, 78%, 0%, 57.3%)
CIE-LAB	lab(15.16, 31.05, -48.77)
CIE-LCH	lch(15.16, 57.82, 302.48°)
OKLab	oklab(28.18% 0.0055 -0.1412)
OKLCH	oklch(28.18% 0.141 272.2)
XYZ	xyz(3.4394, 1.9392, 14.6581)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17186D #6D6C17

analogous

#17436D #17186D #41176D

triadic

#17186D #6D1718 #186D17

tetradic

#17186D #6D1743 #6D6C17 #176D41

square

#17186D #6D1743 #6D6C17 #176D41

split-complementary

#17186D #6D4117 #436D17

monochromatic

#050619 #0C0D3A #17186D #2223A0 #2C2ED2

Accessibility & contrast

On white

15.13

#17186D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#17186D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17186D

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17186D	#FFFFFF	#000000	##FFFFFF
##17186D	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6F

Deuteranopia (green-blind)

#00226B

Tritanopia (blue-blind)

#003141

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #17186d;
/* rgb */ color: rgb(23, 24, 109);
/* oklch */ color: oklch(28.2% 0.141 272.2);

Tailwind

colors: {
  custom: {
    50: '#645698',
    500: '#17186d',
    950: '#000000',
  },
}

SCSS

$custom: #17186d;
$custom-light: #645698;
$custom-dark: #000000;

JSON

{
  "hex": "#17186d",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 109
  },
  "hsl": {
    "h": 239.302,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28183,
    "c": 0.14127,
    "h": 272.2
  },
  "luminance": 0.0194
}

Semantic roles & 50–950 ramp

primary

#17186D

secondary

#A3A23D

accent

#E640E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #17186D

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

Preview Lab → · Contrast checker → · Palette generator →