#17188E#17188E

#17188E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.183 H 269.6°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#17188E
RGB	rgb(23, 24, 142)
HSL	hsl(239, 72%, 32%)
HSV	hsv(239, 84%, 56%)
CMYK	cmyk(83.8%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(19.17, 42.50, -63.17)
CIE-LCH	lch(19.17, 76.13, 303.93°)
OKLab	oklab(32.17% -0.0013 -0.1829)
OKLCH	oklch(32.17% 0.183 269.6)
XYZ	xyz(5.5608, 2.7878, 25.8310)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17188E #8E8D17

analogous

#17538E #17188E #52178E

triadic

#17188E #8E1718 #188E17

tetradic

#17188E #8E1753 #8E8D17 #178E52

square

#17188E #8E1753 #8E8D17 #178E52

split-complementary

#17188E #8E5217 #538E17

monochromatic

#060625 #0E0F59 #17188E #2021C3 #3F41E0

Accessibility & contrast

On white

13.48

#17188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#17188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17188E

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17188E	#FFFFFF	#000000	##FFFFFF
##17188E	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00288C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17188e;
/* rgb */ color: rgb(23, 24, 142);
/* oklch */ color: oklch(32.2% 0.183 269.6);

Tailwind

colors: {
  custom: {
    50: '#6e58b0',
    500: '#17188e',
    950: '#000000',
  },
}

SCSS

$custom: #17188e;
$custom-light: #6e58b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17188e",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 239.496,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32166,
    "c": 0.18291,
    "h": 269.6
  },
  "luminance": 0.02788
}

Semantic roles & 50–950 ramp

primary

#17188E

secondary

#C0BF40

accent

#ED39EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #17188E

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

Preview Lab → · Contrast checker → · Palette generator →