#171271#171271

#171271 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.152 H 272.6°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#171271
RGB	rgb(23, 18, 113)
HSL	hsl(243, 73%, 26%)
HSV	hsv(243, 84%, 44%)
CMYK	cmyk(79.6%, 84.1%, 0%, 55.7%)
CIE-LAB	lab(14.44, 35.93, -52.58)
CIE-LCH	lch(14.44, 63.68, 304.35°)
OKLab	oklab(27.81% 0.007 -0.1521)
OKLCH	oklch(27.81% 0.152 272.6)
XYZ	xyz(3.5493, 1.8066, 15.7812)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171271 #6C7112

analogous

#123C71 #171271 #461271

triadic

#171271 #711712 #127117

tetradic

#171271 #71123C #6C7112 #127146

square

#171271 #71123C #6C7112 #127146

split-complementary

#171271 #714612 #3C7112

monochromatic

#05041A #0C0A3C #171271 #221AA6 #2C23DB

Accessibility & contrast

On white

15.43

#171271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#171271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171271

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171271	#FFFFFF	#000000	##FFFFFF
##171271	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002974

Deuteranopia (green-blind)

#00206F

Tritanopia (blue-blind)

#003042

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171271;
/* rgb */ color: rgb(23, 18, 113);
/* oklch */ color: oklch(27.8% 0.152 272.6);

Tailwind

colors: {
  custom: {
    50: '#66539b',
    500: '#171271',
    950: '#000000',
  },
}

SCSS

$custom: #171271;
$custom-light: #66539b;
$custom-dark: #000000;

JSON

{
  "hex": "#171271",
  "rgb": {
    "r": 23,
    "g": 18,
    "b": 113
  },
  "hsl": {
    "h": 243.158,
    "s": 72.519,
    "l": 25.686
  },
  "oklch": {
    "l": 0.27814,
    "c": 0.15229,
    "h": 272.6
  },
  "luminance": 0.01807
}

Semantic roles & 50–950 ramp

primary

#171271

secondary

#A2A837

accent

#EF39E6

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #171271

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

Preview Lab → · Contrast checker → · Palette generator →