#172471#172471

#172471 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.7% C 0.133 H 269.2°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#172471
RGB	rgb(23, 36, 113)
HSL	hsl(231, 66%, 27%)
HSV	hsv(231, 80%, 44%)
CMYK	cmyk(79.6%, 68.1%, 0%, 55.7%)
CIE-LAB	lab(18.52, 24.59, -45.84)
CIE-LCH	lch(18.52, 52.02, 298.21°)
OKLab	oklab(30.74% -0.0018 -0.1326)
OKLCH	oklch(30.74% 0.133 269.2)
XYZ	xyz(3.9638, 2.6357, 15.9194)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172471 #716417

analogous

#175171 #172471 #371771

triadic

#172471 #711724 #247117

tetradic

#172471 #711751 #716417 #177137

square

#172471 #711751 #716417 #177137

split-complementary

#172471 #713717 #517117

monochromatic

#050819 #0D143E #172471 #2134A4 #2E46D4

Accessibility & contrast

On white

13.75

#172471 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#172471 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172471

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172471	#FFFFFF	#000000	##FFFFFF
##172471	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003173

Deuteranopia (green-blind)

#002970

Tritanopia (blue-blind)

#003847

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #172471;
/* rgb */ color: rgb(23, 36, 113);
/* oklch */ color: oklch(30.7% 0.133 269.2);

Tailwind

colors: {
  custom: {
    50: '#645e9b',
    500: '#172471',
    950: '#000000',
  },
}

SCSS

$custom: #172471;
$custom-light: #645e9b;
$custom-dark: #000000;

JSON

{
  "hex": "#172471",
  "rgb": {
    "r": 23,
    "g": 36,
    "b": 113
  },
  "hsl": {
    "h": 231.333,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.30736,
    "c": 0.13262,
    "h": 269.2
  },
  "luminance": 0.02636
}

Semantic roles & 50–950 ramp

primary

#172471

secondary

#A7973D

accent

#D03FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #172471

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

Preview Lab → · Contrast checker → · Palette generator →