#17188D#17188D

#17188D is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.182 H 269.7°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#17188D
RGB	rgb(23, 24, 141)
HSL	hsl(239, 72%, 32%)
HSV	hsv(239, 84%, 55%)
CMYK	cmyk(83.7%, 83%, 0%, 44.7%)
CIE-LAB	lab(19.05, 42.17, -62.75)
CIE-LCH	lch(19.05, 75.60, 303.90°)
OKLab	oklab(32.04% -0.0011 -0.1817)
OKLCH	oklch(32.04% 0.182 269.7)
XYZ	xyz(5.4861, 2.7579, 25.4373)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17188D #8D8C17

analogous

#17538D #17188D #51178D

triadic

#17188D #8D1718 #188D17

tetradic

#17188D #8D1753 #8D8C17 #178D51

square

#17188D #8D1753 #8D8C17 #178D51

split-complementary

#17188D #8D5117 #538D17

monochromatic

#060624 #0E0F58 #17188D #2021C2 #3F40E0

Accessibility & contrast

On white

13.53

#17188D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#17188D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17188D

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17188D	#FFFFFF	#000000	##FFFFFF
##17188D	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003490

Deuteranopia (green-blind)

#00288B

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #17188d;
/* rgb */ color: rgb(23, 24, 141);
/* oklch */ color: oklch(32.0% 0.182 269.7);

Tailwind

colors: {
  custom: {
    50: '#6d58b0',
    500: '#17188d',
    950: '#000000',
  },
}

SCSS

$custom: #17188d;
$custom-light: #6d58b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17188d",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 141
  },
  "hsl": {
    "h": 239.492,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32042,
    "c": 0.18171,
    "h": 269.7
  },
  "luminance": 0.02759
}

Semantic roles & 50–950 ramp

primary

#17188D

secondary

#C0BF40

accent

#ED39EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #17188D

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

Preview Lab → · Contrast checker → · Palette generator →