#13172F#13172F

#13172F is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.5% C 0.047 H 274.6°. Best body text is #FFFFFF at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#13172F
RGB	rgb(19, 23, 47)
HSL	hsl(231, 42%, 13%)
HSV	hsv(231, 60%, 18%)
CMYK	cmyk(59.6%, 51.1%, 0%, 81.6%)
CIE-LAB	lab(8.62, 6.55, -16.69)
CIE-LCH	lch(8.62, 17.93, 291.42°)
OKLab	oklab(21.47% 0.0038 -0.0473)
OKLCH	oklch(21.47% 0.047 274.6)
XYZ	xyz(1.0879, 0.9564, 2.8161)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13172F #2F2B13

analogous

#13252F #13172F #1D132F

triadic

#13172F #2F1317 #172F13

tetradic

#13172F #2F1325 #2F2B13 #132F1D

square

#13172F #2F1325 #2F2B13 #132F1D

split-complementary

#13172F #2F1D13 #252F13

monochromatic

#090B16 #090B16 #13172F #252C5B #364286

Accessibility & contrast

On white

17.63

#13172F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#13172F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13172F

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13172F	#FFFFFF	#000000	##FFFFFF
##13172F	1.00	17.63	1.19	17.63
#FFFFFF	17.63	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1A30

Deuteranopia (green-blind)

#0B182E

Tritanopia (blue-blind)

#081C20

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #13172f;
/* rgb */ color: rgb(19, 23, 47);
/* oklch */ color: oklch(21.5% 0.047 274.6);

Tailwind

colors: {
  custom: {
    50: '#535367',
    500: '#13172f',
    950: '#000000',
  },
}

SCSS

$custom: #13172f;
$custom-light: #535367;
$custom-dark: #000000;

JSON

{
  "hex": "#13172f",
  "rgb": {
    "r": 19,
    "g": 23,
    "b": 47
  },
  "hsl": {
    "h": 231.429,
    "s": 42.424,
    "l": 12.941
  },
  "oklch": {
    "l": 0.21471,
    "c": 0.04743,
    "h": 274.6
  },
  "luminance": 0.00956
}

Semantic roles & 50–950 ramp

primary

#13172F

secondary

#666037

accent

#C056D2

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #13172F

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

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