#171047#171047

#171047 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.5% C 0.097 H 281.0°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#171047
RGB	rgb(23, 16, 71)
HSL	hsl(248, 63%, 17%)
HSV	hsv(248, 77%, 28%)
CMYK	cmyk(67.6%, 77.5%, 0%, 72.2%)
CIE-LAB	lab(9.05, 22.14, -33.19)
CIE-LCH	lch(9.05, 39.89, 303.70°)
OKLab	oklab(22.55% 0.0185 -0.0956)
OKLCH	oklch(22.55% 0.097 281)
XYZ	xyz(1.6756, 1.0076, 6.0662)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171047 #404710

analogous

#102547 #171047 #331047

triadic

#171047 #471710 #104717

tetradic

#171047 #471025 #404710 #104733

square

#171047 #471025 #404710 #104733

split-complementary

#171047 #473310 #254710

monochromatic

#080619 #080619 #171047 #271B79 #3727AB

Accessibility & contrast

On white

17.48

#171047 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#171047 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171047

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171047	#FFFFFF	#000000	##FFFFFF
##171047	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C49

Deuteranopia (green-blind)

#001846

Tritanopia (blue-blind)

#001F2A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #171047;
/* rgb */ color: rgb(23, 16, 71);
/* oklch */ color: oklch(22.5% 0.097 281.0);

Tailwind

colors: {
  custom: {
    50: '#5b4f7b',
    500: '#171047',
    950: '#000000',
  },
}

SCSS

$custom: #171047;
$custom-light: #5b4f7b;
$custom-dark: #000000;

JSON

{
  "hex": "#171047",
  "rgb": {
    "r": 23,
    "g": 16,
    "b": 71
  },
  "hsl": {
    "h": 247.636,
    "s": 63.218,
    "l": 17.059
  },
  "oklch": {
    "l": 0.22549,
    "c": 0.09742,
    "h": 281
  },
  "luminance": 0.01008
}

Semantic roles & 50–950 ramp

primary

#171047

secondary

#778132

accent

#E642D1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040209

muted

#79787B

Preview Lab

Preview with #171047

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

Preview Lab → · Contrast checker → · Palette generator →