#17174F#17174F

#17174F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.100 H 276.2°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#17174F
RGB	rgb(23, 23, 79)
HSL	hsl(240, 55%, 20%)
HSV	hsv(240, 71%, 31%)
CMYK	cmyk(70.9%, 70.9%, 0%, 69%)
CIE-LAB	lab(11.68, 20.32, -34.43)
CIE-LCH	lch(11.68, 39.98, 300.54°)
OKLab	oklab(24.7% 0.0108 -0.0993)
OKLCH	oklch(24.7% 0.1 276.2)
XYZ	xyz(2.0706, 1.3593, 7.5489)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17174F #4F4F17

analogous

#17334F #17174F #33174F

triadic

#17174F #4F1717 #174F17

tetradic

#17174F #4F1733 #4F4F17 #174F33

square

#17174F #4F1733 #4F4F17 #174F33

split-complementary

#17174F #4F3317 #334F17

monochromatic

#070718 #090920 #17174F #25257E #3333AE

Accessibility & contrast

On white

16.51

#17174F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#17174F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17174F

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17174F	#FFFFFF	#000000	##FFFFFF
##17174F	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002151

Deuteranopia (green-blind)

#001C4E

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #17174f;
/* rgb */ color: rgb(23, 23, 79);
/* oklch */ color: oklch(24.7% 0.100 276.2);

Tailwind

colors: {
  custom: {
    50: '#5c5481',
    500: '#17174f',
    950: '#000000',
  },
}

SCSS

$custom: #17174f;
$custom-light: #5c5481;
$custom-dark: #000000;

JSON

{
  "hex": "#17174f",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 79
  },
  "hsl": {
    "h": 240,
    "s": 54.902,
    "l": 20
  },
  "oklch": {
    "l": 0.24702,
    "c": 0.09987,
    "h": 276.2
  },
  "luminance": 0.01359
}

Semantic roles & 50–950 ramp

primary

#17174F

secondary

#86863C

accent

#DE4ADE

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #17174F

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

Preview Lab → · Contrast checker → · Palette generator →