#17186B#17186B

#17186B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.139 H 272.4°. Best body text is #FFFFFF at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#17186B
RGB	rgb(23, 24, 107)
HSL	hsl(239, 65%, 25%)
HSV	hsv(239, 79%, 42%)
CMYK	cmyk(78.5%, 77.6%, 0%, 58%)
CIE-LAB	lab(14.94, 30.32, -47.84)
CIE-LCH	lch(14.94, 56.64, 302.36°)
OKLab	oklab(27.95% 0.0059 -0.1385)
OKLCH	oklch(27.95% 0.139 272.4)
XYZ	xyz(3.3329, 1.8966, 14.0975)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17186B #6B6A17

analogous

#17426B #17186B #40176B

triadic

#17186B #6B1718 #186B17

tetradic

#17186B #6B1742 #6B6A17 #176B40

square

#17186B #6B1742 #6B6A17 #176B40

split-complementary

#17186B #6B4017 #426B17

monochromatic

#050619 #0C0D39 #17186B #22239D #2D2FD0

Accessibility & contrast

On white

15.22

#17186B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#17186B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17186B

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17186B	#FFFFFF	#000000	##FFFFFF
##17186B	1.00	15.22	1.38	15.22
#FFFFFF	15.22	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6D

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #17186b;
/* rgb */ color: rgb(23, 24, 107);
/* oklch */ color: oklch(28.0% 0.139 272.4);

Tailwind

colors: {
  custom: {
    50: '#645696',
    500: '#17186b',
    950: '#000000',
  },
}

SCSS

$custom: #17186b;
$custom-light: #645696;
$custom-dark: #000000;

JSON

{
  "hex": "#17186b",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 107
  },
  "hsl": {
    "h": 239.286,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.27952,
    "c": 0.13858,
    "h": 272.4
  },
  "luminance": 0.01897
}

Semantic roles & 50–950 ramp

primary

#17186B

secondary

#A1A03D

accent

#E640E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #17186B

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

Preview Lab → · Contrast checker → · Palette generator →