#173473#173473

#173473 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.3% C 0.114 H 263.1°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#173473
RGB	rgb(23, 52, 115)
HSL	hsl(221, 67%, 27%)
HSV	hsv(221, 80%, 45%)
CMYK	cmyk(80%, 54.8%, 0%, 54.9%)
CIE-LAB	lab(23.26, 13.99, -39.41)
CIE-LCH	lch(23.26, 41.82, 289.54°)
OKLab	oklab(34.33% -0.0137 -0.1135)
OKLCH	oklch(34.33% 0.114 263.1)
XYZ	xyz(4.6747, 3.8754, 16.7180)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173473 #735617

analogous

#176273 #173473 #281773

triadic

#173473 #731734 #347317

tetradic

#173473 #731762 #735617 #177328

square

#173473 #731762 #735617 #177328

split-complementary

#173473 #732817 #627317

monochromatic

#050C1A #0D1D40 #173473 #214BA6 #2F63D5

Accessibility & contrast

On white

11.83

#173473 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#173473 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173473

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173473	#FFFFFF	#000000	##FFFFFF
##173473	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#083C75

Deuteranopia (green-blind)

#003372

Tritanopia (blue-blind)

#00434E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173473;
/* rgb */ color: rgb(23, 52, 115);
/* oklch */ color: oklch(34.3% 0.114 263.1);

Tailwind

colors: {
  custom: {
    50: '#636a9c',
    500: '#173473',
    950: '#000000',
  },
}

SCSS

$custom: #173473;
$custom-light: #636a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#173473",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 115
  },
  "hsl": {
    "h": 221.087,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.34328,
    "c": 0.11432,
    "h": 263.1
  },
  "luminance": 0.03876
}

Semantic roles & 50–950 ramp

primary

#173473

secondary

#A9873D

accent

#B43EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173473

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

Preview Lab → · Contrast checker → · Palette generator →