#181744#181744

#181744 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.082 H 279.1°. Best body text is #FFFFFF at 16.87:1 contrast (WCAG AA passes).

Color values

HEX	#181744
RGB	rgb(24, 23, 68)
HSL	hsl(241, 49%, 18%)
HSV	hsv(241, 66%, 27%)
CMYK	cmyk(64.7%, 66.2%, 0%, 73.3%)
CIE-LAB	lab(10.73, 16.19, -28.34)
CIE-LCH	lch(10.73, 32.64, 299.74°)
OKLab	oklab(23.71% 0.013 -0.0813)
OKLCH	oklch(23.71% 0.082 279.1)
XYZ	xyz(1.7261, 1.2242, 5.6131)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181744 #434417

analogous

#172C44 #181744 #2E1744

triadic

#181744 #441817 #174418

tetradic

#181744 #44172C #434417 #17442E

square

#181744 #44172C #434417 #17442E

split-complementary

#181744 #442E17 #2C4417

monochromatic

#080817 #080817 #181744 #282672 #38369F

Accessibility & contrast

On white

16.87

#181744 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#181744 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181744

16.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181744	#FFFFFF	#000000	##FFFFFF
##181744	1.00	16.87	1.24	16.87
#FFFFFF	16.87	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F45

Deuteranopia (green-blind)

#001B43

Tritanopia (blue-blind)

#02222A

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #181744;
/* rgb */ color: rgb(24, 23, 68);
/* oklch */ color: oklch(23.7% 0.082 279.1);

Tailwind

colors: {
  custom: {
    50: '#5a5478',
    500: '#181744',
    950: '#000000',
  },
}

SCSS

$custom: #181744;
$custom-light: #5a5478;
$custom-dark: #000000;

JSON

{
  "hex": "#181744",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 68
  },
  "hsl": {
    "h": 241.333,
    "s": 49.451,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23705,
    "c": 0.08238,
    "h": 279.1
  },
  "luminance": 0.01224
}

Semantic roles & 50–950 ramp

primary

#181744

secondary

#7A7B3C

accent

#D94FD6

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040209

muted

#79787B

Preview Lab

Preview with #181744

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

Preview Lab → · Contrast checker → · Palette generator →