#17174C#17174C

#17174C is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.4% C 0.095 H 276.7°. Best body text is #FFFFFF at 16.62:1 contrast (WCAG AA passes).

Color values

HEX	#17174C
RGB	rgb(23, 23, 76)
HSL	hsl(240, 54%, 19%)
HSV	hsv(240, 70%, 30%)
CMYK	cmyk(69.7%, 69.7%, 0%, 70.2%)
CIE-LAB	lab(11.39, 19.14, -32.84)
CIE-LCH	lch(11.39, 38.01, 300.23°)
OKLab	oklab(24.4% 0.0111 -0.0946)
OKLCH	oklch(24.4% 0.095 276.7)
XYZ	xyz(1.9638, 1.3166, 6.9867)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.56

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17174C #4C4C17

analogous

#17324C #17174C #32174C

triadic

#17174C #4C1717 #174C17

tetradic

#17174C #4C1732 #4C4C17 #174C32

square

#17174C #4C1732 #4C4C17 #174C32

split-complementary

#17174C #4C3217 #324C17

monochromatic

#070717 #09091D #17174C #25257B #3333AA

Accessibility & contrast

On white

16.62

#17174C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#17174C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17174C

16.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17174C	#FFFFFF	#000000	##FFFFFF
##17174C	1.00	16.62	1.26	16.62
#FFFFFF	16.62	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214E

Deuteranopia (green-blind)

#001C4B

Tritanopia (blue-blind)

#00242F

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #17174c;
/* rgb */ color: rgb(23, 23, 76);
/* oklch */ color: oklch(24.4% 0.095 276.7);

Tailwind

colors: {
  custom: {
    50: '#5c547f',
    500: '#17174c',
    950: '#000000',
  },
}

SCSS

$custom: #17174c;
$custom-light: #5c547f;
$custom-dark: #000000;

JSON

{
  "hex": "#17174c",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 76
  },
  "hsl": {
    "h": 240,
    "s": 53.535,
    "l": 19.412
  },
  "oklch": {
    "l": 0.24398,
    "c": 0.09527,
    "h": 276.7
  },
  "luminance": 0.01317
}

Semantic roles & 50–950 ramp

primary

#17174C

secondary

#83833C

accent

#DD4BDD

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #17174C

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

Preview Lab → · Contrast checker → · Palette generator →