#172871#172871

#172871 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.5% C 0.127 H 268.0°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#172871
RGB	rgb(23, 40, 113)
HSL	hsl(229, 66%, 27%)
HSV	hsv(229, 80%, 44%)
CMYK	cmyk(79.6%, 64.6%, 0%, 55.7%)
CIE-LAB	lab(19.60, 21.77, -44.07)
CIE-LCH	lch(19.60, 49.15, 296.29°)
OKLab	oklab(31.53% -0.0045 -0.1274)
OKLCH	oklch(31.53% 0.127 268)
XYZ	xyz(4.0917, 2.8915, 15.9621)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172871 #716017

analogous

#175571 #172871 #331771

triadic

#172871 #711728 #287117

tetradic

#172871 #711755 #716017 #177133

square

#172871 #711755 #716017 #177133

split-complementary

#172871 #713317 #557117

monochromatic

#050919 #0D163E #172871 #213AA4 #2E4DD4

Accessibility & contrast

On white

13.30

#172871 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#172871 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172871

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172871	#FFFFFF	#000000	##FFFFFF
##172871	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003473

Deuteranopia (green-blind)

#002B70

Tritanopia (blue-blind)

#003B48

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172871;
/* rgb */ color: rgb(23, 40, 113);
/* oklch */ color: oklch(31.5% 0.127 268.0);

Tailwind

colors: {
  custom: {
    50: '#64619b',
    500: '#172871',
    950: '#000000',
  },
}

SCSS

$custom: #172871;
$custom-light: #64619b;
$custom-dark: #000000;

JSON

{
  "hex": "#172871",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 113
  },
  "hsl": {
    "h": 228.667,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.31533,
    "c": 0.12746,
    "h": 268
  },
  "luminance": 0.02892
}

Semantic roles & 50–950 ramp

primary

#172871

secondary

#A7933D

accent

#C93FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172871

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

Preview Lab → · Contrast checker → · Palette generator →