#173471#173471

#173471 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.2% C 0.111 H 262.8°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#173471
RGB	rgb(23, 52, 113)
HSL	hsl(221, 66%, 27%)
HSV	hsv(221, 80%, 44%)
CMYK	cmyk(79.6%, 54%, 0%, 55.7%)
CIE-LAB	lab(23.10, 13.16, -38.38)
CIE-LCH	lch(23.10, 40.58, 288.92°)
OKLab	oklab(34.16% -0.0139 -0.1105)
OKLCH	oklch(34.16% 0.111 262.8)
XYZ	xyz(4.5609, 3.8299, 16.1184)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173471 #715417

analogous

#176171 #173471 #271771

triadic

#173471 #711734 #347117

tetradic

#173471 #711761 #715417 #177127

square

#173471 #711761 #715417 #177127

split-complementary

#173471 #712717 #617117

monochromatic

#050C19 #0D1D3E #173471 #214BA4 #2E64D4

Accessibility & contrast

On white

11.89

#173471 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#173471 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173471

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173471	#FFFFFF	#000000	##FFFFFF
##173471	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3B73

Deuteranopia (green-blind)

#003370

Tritanopia (blue-blind)

#00434D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173471;
/* rgb */ color: rgb(23, 52, 113);
/* oklch */ color: oklch(34.2% 0.111 262.8);

Tailwind

colors: {
  custom: {
    50: '#636a9a',
    500: '#173471',
    950: '#000000',
  },
}

SCSS

$custom: #173471;
$custom-light: #636a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#173471",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 113
  },
  "hsl": {
    "h": 220.667,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.34161,
    "c": 0.11134,
    "h": 262.8
  },
  "luminance": 0.0383
}

Semantic roles & 50–950 ramp

primary

#173471

secondary

#A7853D

accent

#B23FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173471

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

Preview Lab → · Contrast checker → · Palette generator →