#171281#171281

#171281 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.8% C 0.172 H 271.0°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#171281
RGB	rgb(23, 18, 129)
HSL	hsl(243, 76%, 29%)
HSV	hsv(243, 86%, 51%)
CMYK	cmyk(82.2%, 86%, 0%, 49.4%)
CIE-LAB	lab(16.50, 41.21, -59.43)
CIE-LCH	lch(16.50, 72.32, 304.74°)
OKLab	oklab(29.84% 0.003 -0.172)
OKLCH	oklch(29.84% 0.172 271)
XYZ	xyz(4.5308, 2.1992, 20.9503)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171281 #7C8112

analogous

#124581 #171281 #4F1281

triadic

#171281 #811712 #128117

tetradic

#171281 #811245 #7C8112 #12814F

square

#171281 #811245 #7C8112 #12814F

split-complementary

#171281 #814F12 #458112

monochromatic

#05041B #0D0B4B #171281 #2119B7 #342CE2

Accessibility & contrast

On white

14.58

#171281 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#171281 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171281

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171281	#FFFFFF	#000000	##FFFFFF
##171281	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E84

Deuteranopia (green-blind)

#00237F

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171281;
/* rgb */ color: rgb(23, 18, 129);
/* oklch */ color: oklch(29.8% 0.172 271.0);

Tailwind

colors: {
  custom: {
    50: '#6b54a7',
    500: '#171281',
    950: '#000000',
  },
}

SCSS

$custom: #171281;
$custom-light: #6b54a7;
$custom-dark: #000000;

JSON

{
  "hex": "#171281",
  "rgb": {
    "r": 23,
    "g": 18,
    "b": 129
  },
  "hsl": {
    "h": 242.703,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.29835,
    "c": 0.172,
    "h": 271
  },
  "luminance": 0.022
}

Semantic roles & 50–950 ramp

primary

#171281

secondary

#B1B738

accent

#F236EA

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #171281

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

Preview Lab → · Contrast checker → · Palette generator →