#171889#171889

#171889 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.177 H 269.9°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#171889
RGB	rgb(23, 24, 137)
HSL	hsl(239, 71%, 31%)
HSV	hsv(239, 83%, 54%)
CMYK	cmyk(83.2%, 82.5%, 0%, 46.3%)
CIE-LAB	lab(18.54, 40.84, -61.08)
CIE-LCH	lch(18.54, 73.48, 303.77°)
OKLab	oklab(31.55% -0.0002 -0.1769)
OKLCH	oklch(31.55% 0.177 269.9)
XYZ	xyz(5.1938, 2.6410, 23.8981)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171889 #898817

analogous

#175189 #171889 #4F1789

triadic

#171889 #891718 #188917

tetradic

#171889 #891751 #898817 #17894F

square

#171889 #891751 #898817 #17894F

split-complementary

#171889 #894F17 #518917

monochromatic

#050620 #0E0F55 #171889 #2021BD #3C3EDE

Accessibility & contrast

On white

13.74

#171889 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#171889 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171889

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171889	#FFFFFF	#000000	##FFFFFF
##171889	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338C

Deuteranopia (green-blind)

#002787

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #171889;
/* rgb */ color: rgb(23, 24, 137);
/* oklch */ color: oklch(31.5% 0.177 269.9);

Tailwind

colors: {
  custom: {
    50: '#6c58ad',
    500: '#171889',
    950: '#000000',
  },
}

SCSS

$custom: #171889;
$custom-light: #6c58ad;
$custom-dark: #000000;

JSON

{
  "hex": "#171889",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 137
  },
  "hsl": {
    "h": 239.474,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31547,
    "c": 0.17688,
    "h": 269.9
  },
  "luminance": 0.02642
}

Semantic roles & 50–950 ramp

primary

#171889

secondary

#BDBC3F

accent

#EC3AEE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #171889

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

Preview Lab → · Contrast checker → · Palette generator →