#173572#173572

#173572 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.5% C 0.112 H 262.4°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#173572
RGB	rgb(23, 53, 114)
HSL	hsl(220, 66%, 27%)
HSV	hsv(220, 80%, 45%)
CMYK	cmyk(79.8%, 53.5%, 0%, 55.3%)
CIE-LAB	lab(23.48, 12.86, -38.41)
CIE-LCH	lch(23.48, 40.50, 288.51°)
OKLab	oklab(34.48% -0.0147 -0.1105)
OKLCH	oklch(34.48% 0.112 262.4)
XYZ	xyz(4.6626, 3.9427, 16.4316)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173572 #725417

analogous

#176372 #173572 #271772

triadic

#173572 #721735 #357217

tetradic

#173572 #721763 #725417 #177227

square

#173572 #721763 #725417 #177227

split-complementary

#173572 #722717 #637217

monochromatic

#050C19 #0D1D3F #173572 #214DA5 #2E65D5

Accessibility & contrast

On white

11.74

#173572 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#173572 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173572

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173572	#FFFFFF	#000000	##FFFFFF
##173572	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3C74

Deuteranopia (green-blind)

#003471

Tritanopia (blue-blind)

#00444E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173572;
/* rgb */ color: rgb(23, 53, 114);
/* oklch */ color: oklch(34.5% 0.112 262.4);

Tailwind

colors: {
  custom: {
    50: '#636b9b',
    500: '#173572',
    950: '#000000',
  },
}

SCSS

$custom: #173572;
$custom-light: #636b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#173572",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 114
  },
  "hsl": {
    "h": 220.22,
    "s": 66.423,
    "l": 26.863
  },
  "oklch": {
    "l": 0.34475,
    "c": 0.1115,
    "h": 262.4
  },
  "luminance": 0.03943
}

Semantic roles & 50–950 ramp

primary

#173572

secondary

#A8853D

accent

#B13EE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173572

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

Preview Lab → · Contrast checker → · Palette generator →