#171871#171871

#171871 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.7% C 0.147 H 271.8°. Best body text is #FFFFFF at 14.94:1 contrast (WCAG AA passes).

Color values

HEX	#171871
RGB	rgb(23, 24, 113)
HSL	hsl(239, 66%, 27%)
HSV	hsv(239, 80%, 44%)
CMYK	cmyk(79.6%, 78.8%, 0%, 55.7%)
CIE-LAB	lab(15.63, 32.50, -50.60)
CIE-LCH	lch(15.63, 60.14, 302.71°)
OKLab	oklab(28.65% 0.0047 -0.1465)
OKLCH	oklch(28.65% 0.147 271.8)
XYZ	xyz(3.6596, 2.0273, 15.8180)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171871 #717017

analogous

#174571 #171871 #431771

triadic

#171871 #711718 #187117

tetradic

#171871 #711745 #717017 #177143

square

#171871 #711745 #717017 #177143

split-complementary

#171871 #714317 #457117

monochromatic

#050519 #0D0D3E #171871 #2123A4 #2E30D4

Accessibility & contrast

On white

14.94

#171871 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171871 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171871

14.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171871	#FFFFFF	#000000	##FFFFFF
##171871	1.00	14.94	1.41	14.94
#FFFFFF	14.94	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B74

Deuteranopia (green-blind)

#00226F

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171871;
/* rgb */ color: rgb(23, 24, 113);
/* oklch */ color: oklch(28.7% 0.147 271.8);

Tailwind

colors: {
  custom: {
    50: '#66569b',
    500: '#171871',
    950: '#000000',
  },
}

SCSS

$custom: #171871;
$custom-light: #66569b;
$custom-dark: #000000;

JSON

{
  "hex": "#171871",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 113
  },
  "hsl": {
    "h": 239.333,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.28651,
    "c": 0.14657,
    "h": 271.8
  },
  "luminance": 0.02028
}

Semantic roles & 50–950 ramp

primary

#171871

secondary

#A7A53D

accent

#E73FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171871

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

Preview Lab → · Contrast checker → · Palette generator →