#18184F#18184F

#18184F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 25.0% C 0.098 H 276.6°. Best body text is #FFFFFF at 16.38:1 contrast (WCAG AA passes).

Color values

HEX	#18184F
RGB	rgb(24, 24, 79)
HSL	hsl(240, 53%, 20%)
HSV	hsv(240, 70%, 31%)
CMYK	cmyk(69.6%, 69.6%, 0%, 69%)
CIE-LAB	lab(12.04, 19.77, -33.85)
CIE-LCH	lch(12.04, 39.20, 300.29°)
OKLab	oklab(24.98% 0.0113 -0.0975)
OKLCH	oklch(24.98% 0.098 276.6)
XYZ	xyz(2.1141, 1.4118, 7.5567)
Luminance	0.0141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18184F #4F4F18

analogous

#18334F #18184F #33184F

triadic

#18184F #4F1818 #184F18

tetradic

#18184F #4F1833 #4F4F18 #184F33

square

#18184F #4F1833 #4F4F18 #184F33

split-complementary

#18184F #4F3318 #334F18

monochromatic

#070717 #0A0A20 #18184F #26267E #3535AD

Accessibility & contrast

On white

16.38

#18184F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#18184F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18184F

16.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18184F	#FFFFFF	#000000	##FFFFFF
##18184F	1.00	16.38	1.28	16.38
#FFFFFF	16.38	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002251

Deuteranopia (green-blind)

#001D4E

Tritanopia (blue-blind)

#002630

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #18184f;
/* rgb */ color: rgb(24, 24, 79);
/* oklch */ color: oklch(25.0% 0.098 276.6);

Tailwind

colors: {
  custom: {
    50: '#5d5581',
    500: '#18184f',
    950: '#000000',
  },
}

SCSS

$custom: #18184f;
$custom-light: #5d5581;
$custom-dark: #000000;

JSON

{
  "hex": "#18184f",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 79
  },
  "hsl": {
    "h": 240,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.2498,
    "c": 0.09819,
    "h": 276.6
  },
  "luminance": 0.01412
}

Semantic roles & 50–950 ramp

primary

#18184F

secondary

#86863D

accent

#DD4BDD

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05030A

muted

#79787C

Preview Lab

Preview with #18184F

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

Preview Lab → · Contrast checker → · Palette generator →