#171273#171273

#171273 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.155 H 272.4°. Best body text is #FFFFFF at 15.32:1 contrast (WCAG AA passes).

Color values

HEX	#171273
RGB	rgb(23, 18, 115)
HSL	hsl(243, 73%, 26%)
HSV	hsv(243, 84%, 45%)
CMYK	cmyk(80%, 84.3%, 0%, 54.9%)
CIE-LAB	lab(14.69, 36.60, -53.45)
CIE-LCH	lch(14.69, 64.78, 304.40°)
OKLab	oklab(28.06% 0.0065 -0.1547)
OKLCH	oklch(28.06% 0.155 272.4)
XYZ	xyz(3.6631, 1.8522, 16.3808)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171273 #6E7312

analogous

#123D73 #171273 #471273

triadic

#171273 #731712 #127317

tetradic

#171273 #73123D #6E7312 #127347

square

#171273 #73123D #6E7312 #127347

split-complementary

#171273 #734712 #3D7312

monochromatic

#05041A #0C0A3E #171273 #221AA8 #2C23DD

Accessibility & contrast

On white

15.32

#171273 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#171273 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171273

15.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171273	#FFFFFF	#000000	##FFFFFF
##171273	1.00	15.32	1.37	15.32
#FFFFFF	15.32	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A76

Deuteranopia (green-blind)

#002071

Tritanopia (blue-blind)

#003143

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171273;
/* rgb */ color: rgb(23, 18, 115);
/* oklch */ color: oklch(28.1% 0.155 272.4);

Tailwind

colors: {
  custom: {
    50: '#67539c',
    500: '#171273',
    950: '#000000',
  },
}

SCSS

$custom: #171273;
$custom-light: #67539c;
$custom-dark: #000000;

JSON

{
  "hex": "#171273",
  "rgb": {
    "r": 23,
    "g": 18,
    "b": 115
  },
  "hsl": {
    "h": 243.093,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28064,
    "c": 0.15482,
    "h": 272.4
  },
  "luminance": 0.01853
}

Semantic roles & 50–950 ramp

primary

#171273

secondary

#A4AA37

accent

#F038E6

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #171273

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

Preview Lab → · Contrast checker → · Palette generator →