#17174E#17174E

#17174E is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.6% C 0.098 H 276.4°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#17174E
RGB	rgb(23, 23, 78)
HSL	hsl(240, 54%, 20%)
HSV	hsv(240, 71%, 31%)
CMYK	cmyk(70.5%, 70.5%, 0%, 69.4%)
CIE-LAB	lab(11.59, 19.92, -33.90)
CIE-LCH	lch(11.59, 39.33, 300.44°)
OKLab	oklab(24.6% 0.0109 -0.0977)
OKLCH	oklch(24.6% 0.098 276.4)
XYZ	xyz(2.0344, 1.3448, 7.3586)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.76

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17174E #4E4E17

analogous

#17334E #17174E #33174E

triadic

#17174E #4E1717 #174E17

tetradic

#17174E #4E1733 #4E4E17 #174E33

square

#17174E #4E1733 #4E4E17 #174E33

split-complementary

#17174E #4E3317 #334E17

monochromatic

#070718 #09091F #17174E #25257D #3333AD

Accessibility & contrast

On white

16.55

#17174E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#17174E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17174E

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17174E	#FFFFFF	#000000	##FFFFFF
##17174E	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001C4D

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #17174e;
/* rgb */ color: rgb(23, 23, 78);
/* oklch */ color: oklch(24.6% 0.098 276.4);

Tailwind

colors: {
  custom: {
    50: '#5c5480',
    500: '#17174e',
    950: '#000000',
  },
}

SCSS

$custom: #17174e;
$custom-light: #5c5480;
$custom-dark: #000000;

JSON

{
  "hex": "#17174e",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 78
  },
  "hsl": {
    "h": 240,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.246,
    "c": 0.09834,
    "h": 276.4
  },
  "luminance": 0.01345
}

Semantic roles & 50–950 ramp

primary

#17174E

secondary

#85853C

accent

#DE4ADE

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #17174E

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

Preview Lab → · Contrast checker → · Palette generator →