#17184E#17184E

#17184E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.097 H 275.9°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#17184E
RGB	rgb(23, 24, 78)
HSL	hsl(239, 54%, 20%)
HSV	hsv(239, 71%, 31%)
CMYK	cmyk(70.5%, 69.2%, 0%, 69.4%)
CIE-LAB	lab(11.86, 19.20, -33.46)
CIE-LCH	lch(11.86, 38.58, 299.85°)
OKLab	oklab(24.8% 0.01 -0.0964)
OKLCH	oklch(24.8% 0.097 275.9)
XYZ	xyz(2.0547, 1.3853, 7.3654)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.86

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17184E #4E4D17

analogous

#17344E #17184E #32174E

triadic

#17184E #4E1718 #184E17

tetradic

#17184E #4E1734 #4E4D17 #174E32

square

#17184E #4E1734 #4E4D17 #174E32

split-complementary

#17184E #4E3217 #344E17

monochromatic

#070718 #09091F #17184E #25277D #3335AD

Accessibility & contrast

On white

16.44

#17184E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#17184E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17184E

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17184E	#FFFFFF	#000000	##FFFFFF
##17184E	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002250

Deuteranopia (green-blind)

#001D4D

Tritanopia (blue-blind)

#002630

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #17184e;
/* rgb */ color: rgb(23, 24, 78);
/* oklch */ color: oklch(24.8% 0.097 275.9);

Tailwind

colors: {
  custom: {
    50: '#5c5580',
    500: '#17184e',
    950: '#000000',
  },
}

SCSS

$custom: #17184e;
$custom-light: #5c5580;
$custom-dark: #000000;

JSON

{
  "hex": "#17184e",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 78
  },
  "hsl": {
    "h": 238.909,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.248,
    "c": 0.09692,
    "h": 275.9
  },
  "luminance": 0.01385
}

Semantic roles & 50–950 ramp

primary

#17184E

secondary

#85843C

accent

#DB4ADE

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #17184E

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

Preview Lab → · Contrast checker → · Palette generator →