#173872#173872

#173872 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.107 H 260.7°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#173872
RGB	rgb(23, 56, 114)
HSL	hsl(218, 66%, 27%)
HSV	hsv(218, 80%, 45%)
CMYK	cmyk(79.8%, 50.9%, 0%, 55.3%)
CIE-LAB	lab(24.40, 10.72, -36.92)
CIE-LCH	lch(24.40, 38.45, 286.19°)
OKLab	oklab(35.18% -0.0173 -0.1061)
OKLCH	oklch(35.18% 0.107 260.7)
XYZ	xyz(4.8037, 4.2249, 16.4786)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173872 #725117

analogous

#176672 #173872 #241772

triadic

#173872 #721738 #387217

tetradic

#173872 #721766 #725117 #177224

square

#173872 #721766 #725117 #177224

split-complementary

#173872 #722417 #667217

monochromatic

#050D19 #0D1F3F #173872 #2151A5 #2E6BD5

Accessibility & contrast

On white

11.38

#173872 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#173872 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173872

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173872	#FFFFFF	#000000	##FFFFFF
##173872	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173E74

Deuteranopia (green-blind)

#003671

Tritanopia (blue-blind)

#00464F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173872;
/* rgb */ color: rgb(23, 56, 114);
/* oklch */ color: oklch(35.2% 0.107 260.7);

Tailwind

colors: {
  custom: {
    50: '#636e9b',
    500: '#173872',
    950: '#000000',
  },
}

SCSS

$custom: #173872;
$custom-light: #636e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#173872",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 114
  },
  "hsl": {
    "h": 218.242,
    "s": 66.423,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35179,
    "c": 0.10749,
    "h": 260.7
  },
  "luminance": 0.04225
}

Semantic roles & 50–950 ramp

primary

#173872

secondary

#A8813D

accent

#AB3EE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #173872

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

Preview Lab → · Contrast checker → · Palette generator →