#18174F#18174F

#18174F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.100 H 277.1°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#18174F
RGB	rgb(24, 23, 79)
HSL	hsl(241, 55%, 20%)
HSV	hsv(241, 71%, 31%)
CMYK	cmyk(69.6%, 70.9%, 0%, 69%)
CIE-LAB	lab(11.77, 20.49, -34.29)
CIE-LCH	lch(11.77, 39.95, 300.85°)
OKLab	oklab(24.78% 0.0123 -0.0988)
OKLCH	oklch(24.78% 0.1 277.1)
XYZ	xyz(2.0939, 1.3713, 7.5500)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18174F #4E4F17

analogous

#17324F #18174F #34174F

triadic

#18174F #4F1817 #174F18

tetradic

#18174F #4F1732 #4E4F17 #174F34

square

#18174F #4F1732 #4E4F17 #174F34

split-complementary

#18174F #4F3417 #324F17

monochromatic

#070718 #0A0920 #18174F #26257E #3533AE

Accessibility & contrast

On white

16.48

#18174F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#18174F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18174F

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18174F	#FFFFFF	#000000	##FFFFFF
##18174F	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)

#002151

Deuteranopia (green-blind)

#001D4E

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #18174f;
/* rgb */ color: rgb(24, 23, 79);
/* oklch */ color: oklch(24.8% 0.100 277.1);

Tailwind

colors: {
  custom: {
    50: '#5d5481',
    500: '#18174f',
    950: '#000000',
  },
}

SCSS

$custom: #18174f;
$custom-light: #5d5481;
$custom-dark: #000000;

JSON

{
  "hex": "#18174f",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 79
  },
  "hsl": {
    "h": 241.071,
    "s": 54.902,
    "l": 20
  },
  "oklch": {
    "l": 0.24783,
    "c": 0.0996,
    "h": 277.1
  },
  "luminance": 0.01371
}

Semantic roles & 50–950 ramp

primary

#18174F

secondary

#85863C

accent

#DE4ADC

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #18174F

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

Preview Lab → · Contrast checker → · Palette generator →