#172572#172572

#172572 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.0% C 0.133 H 268.9°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#172572
RGB	rgb(23, 37, 114)
HSL	hsl(231, 66%, 27%)
HSV	hsv(231, 80%, 45%)
CMYK	cmyk(79.8%, 67.5%, 0%, 55.3%)
CIE-LAB	lab(18.88, 24.29, -45.89)
CIE-LCH	lch(18.88, 51.92, 297.89°)
OKLab	oklab(31.03% -0.0025 -0.1327)
OKLCH	oklch(31.03% 0.133 268.9)
XYZ	xyz(4.0511, 2.7198, 16.2278)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172572 #726417

analogous

#175372 #172572 #371772

triadic

#172572 #721725 #257217

tetradic

#172572 #721753 #726417 #177237

square

#172572 #721753 #726417 #177237

split-complementary

#172572 #723717 #537217

monochromatic

#050819 #0D143F #172572 #2136A5 #2E48D5

Accessibility & contrast

On white

13.60

#172572 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#172572 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172572

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172572	#FFFFFF	#000000	##FFFFFF
##172572	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003274

Deuteranopia (green-blind)

#002A71

Tritanopia (blue-blind)

#003948

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172572;
/* rgb */ color: rgb(23, 37, 114);
/* oklch */ color: oklch(31.0% 0.133 268.9);

Tailwind

colors: {
  custom: {
    50: '#645f9b',
    500: '#172572',
    950: '#000000',
  },
}

SCSS

$custom: #172572;
$custom-light: #645f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#172572",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 114
  },
  "hsl": {
    "h": 230.769,
    "s": 66.423,
    "l": 26.863
  },
  "oklch": {
    "l": 0.31032,
    "c": 0.13277,
    "h": 268.9
  },
  "luminance": 0.0272
}

Semantic roles & 50–950 ramp

primary

#172572

secondary

#A8973D

accent

#CF3EE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #172572

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

Preview Lab → · Contrast checker → · Palette generator →