#172271#172271

#172271 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.135 H 269.8°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#172271
RGB	rgb(23, 34, 113)
HSL	hsl(233, 66%, 27%)
HSV	hsv(233, 80%, 44%)
CMYK	cmyk(79.6%, 69.9%, 0%, 55.7%)
CIE-LAB	lab(18.00, 25.98, -46.70)
CIE-LCH	lch(18.00, 53.44, 299.09°)
OKLab	oklab(30.35% -0.0006 -0.1351)
OKLCH	oklch(30.35% 0.135 269.8)
XYZ	xyz(3.9050, 2.5180, 15.8998)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172271 #716617

analogous

#174F71 #172271 #391771

triadic

#172271 #711722 #227117

tetradic

#172271 #71174F #716617 #177139

square

#172271 #71174F #716617 #177139

split-complementary

#172271 #713917 #4F7117

monochromatic

#050819 #0D133E #172271 #2131A4 #2E42D4

Accessibility & contrast

On white

13.97

#172271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#172271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172271

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172271	#FFFFFF	#000000	##FFFFFF
##172271	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003073

Deuteranopia (green-blind)

#002870

Tritanopia (blue-blind)

#003746

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #172271;
/* rgb */ color: rgb(23, 34, 113);
/* oklch */ color: oklch(30.4% 0.135 269.8);

Tailwind

colors: {
  custom: {
    50: '#645d9b',
    500: '#172271',
    950: '#000000',
  },
}

SCSS

$custom: #172271;
$custom-light: #645d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#172271",
  "rgb": {
    "r": 23,
    "g": 34,
    "b": 113
  },
  "hsl": {
    "h": 232.667,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.30354,
    "c": 0.13513,
    "h": 269.8
  },
  "luminance": 0.02518
}

Semantic roles & 50–950 ramp

primary

#172271

secondary

#A79A3D

accent

#D43FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #172271

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

Preview Lab → · Contrast checker → · Palette generator →