#17184D#17184D

#17184D is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.095 H 276.0°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#17184D
RGB	rgb(23, 24, 77)
HSL	hsl(239, 54%, 20%)
HSV	hsv(239, 70%, 30%)
CMYK	cmyk(70.1%, 68.8%, 0%, 69.8%)
CIE-LAB	lab(11.76, 18.80, -32.92)
CIE-LCH	lch(11.76, 37.92, 299.73°)
OKLab	oklab(24.7% 0.01 -0.0948)
OKLCH	oklch(24.7% 0.095 276)
XYZ	xyz(2.0191, 1.3711, 7.1780)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17184D #4D4C17

analogous

#17334D #17184D #31174D

triadic

#17184D #4D1718 #184D17

tetradic

#17184D #4D1733 #4D4C17 #174D31

square

#17184D #4D1733 #4D4C17 #174D31

split-complementary

#17184D #4D3117 #334D17

monochromatic

#070718 #09091E #17184D #25277C #3335AB

Accessibility & contrast

On white

16.48

#17184D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#17184D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17184D

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17184D	#FFFFFF	#000000	##FFFFFF
##17184D	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214F

Deuteranopia (green-blind)

#001D4C

Tritanopia (blue-blind)

#00252F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #17184d;
/* rgb */ color: rgb(23, 24, 77);
/* oklch */ color: oklch(24.7% 0.095 276.0);

Tailwind

colors: {
  custom: {
    50: '#5c547f',
    500: '#17184d',
    950: '#000000',
  },
}

SCSS

$custom: #17184d;
$custom-light: #5c547f;
$custom-dark: #000000;

JSON

{
  "hex": "#17184d",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 77
  },
  "hsl": {
    "h": 238.889,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.24701,
    "c": 0.09538,
    "h": 276
  },
  "luminance": 0.01371
}

Semantic roles & 50–950 ramp

primary

#17184D

secondary

#84833C

accent

#DB4ADD

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #17184D

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

Preview Lab → · Contrast checker → · Palette generator →