#173884#173884

#173884 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.7% C 0.134 H 263.5°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#173884
RGB	rgb(23, 56, 132)
HSL	hsl(222, 70%, 30%)
HSV	hsv(222, 83%, 52%)
CMYK	cmyk(82.6%, 57.6%, 0%, 48.2%)
CIE-LAB	lab(25.79, 18.19, -46.04)
CIE-LCH	lch(25.79, 49.50, 291.56°)
OKLab	oklab(36.68% -0.0152 -0.1329)
OKLCH	oklch(36.68% 0.134 263.5)
XYZ	xyz(5.9309, 4.6757, 22.4152)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173884 #846317

analogous

#176E84 #173884 #2C1784

triadic

#173884 #841738 #388417

tetradic

#173884 #84176E #846317 #17842C

square

#173884 #84176E #846317 #17842C

split-complementary

#173884 #842C17 #6E8417

monochromatic

#050C1C #0E2250 #173884 #204EB8 #396ADC

Accessibility & contrast

On white

10.85

#173884 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#173884 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173884

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173884	#FFFFFF	#000000	##FFFFFF
##173884	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004287

Deuteranopia (green-blind)

#003883

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #173884;
/* rgb */ color: rgb(23, 56, 132);
/* oklch */ color: oklch(36.7% 0.134 263.5);

Tailwind

colors: {
  custom: {
    50: '#686ea8',
    500: '#173884',
    950: '#000000',
  },
}

SCSS

$custom: #173884;
$custom-light: #686ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#173884",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 132
  },
  "hsl": {
    "h": 221.835,
    "s": 70.323,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36675,
    "c": 0.13377,
    "h": 263.5
  },
  "luminance": 0.04676
}

Semantic roles & 50–950 ramp

primary

#173884

secondary

#B8933F

accent

#B73BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #173884

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

Preview Lab → · Contrast checker → · Palette generator →