#18193D#18193D

#18193D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.5% C 0.068 H 278.7°. Best body text is #FFFFFF at 16.86:1 contrast (WCAG AA passes).

Color values

HEX	#18193D
RGB	rgb(24, 25, 61)
HSL	hsl(238, 44%, 17%)
HSV	hsv(238, 61%, 24%)
CMYK	cmyk(60.7%, 59%, 0%, 76.1%)
CIE-LAB	lab(10.75, 11.94, -23.37)
CIE-LCH	lch(10.75, 26.25, 297.06°)
OKLab	oklab(23.53% 0.0102 -0.0667)
OKLCH	oklch(23.53% 0.068 278.7)
XYZ	xyz(1.5664, 1.2263, 4.5681)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18193D #3D3C18

analogous

#182C3D #18193D #2A183D

triadic

#18193D #3D1819 #193D18

tetradic

#18193D #3D182C #3D3C18 #183D2A

square

#18193D #3D182C #3D3C18 #183D2A

split-complementary

#18193D #3D2A18 #2C3D18

monochromatic

#090916 #090916 #18193D #292B69 #3B3D95

Accessibility & contrast

On white

16.86

#18193D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#18193D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18193D

16.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18193D	#FFFFFF	#000000	##FFFFFF
##18193D	1.00	16.86	1.25	16.86
#FFFFFF	16.86	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071E3E

Deuteranopia (green-blind)

#041C3C

Tritanopia (blue-blind)

#082128

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #18193d;
/* rgb */ color: rgb(24, 25, 61);
/* oklch */ color: oklch(23.5% 0.068 278.7);

Tailwind

colors: {
  custom: {
    50: '#585573',
    500: '#18193d',
    950: '#000000',
  },
}

SCSS

$custom: #18193d;
$custom-light: #585573;
$custom-dark: #000000;

JSON

{
  "hex": "#18193d",
  "rgb": {
    "r": 24,
    "g": 25,
    "b": 61
  },
  "hsl": {
    "h": 238.378,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.2353,
    "c": 0.0675,
    "h": 278.7
  },
  "luminance": 0.01226
}

Semantic roles & 50–950 ramp

primary

#18193D

secondary

#73723D

accent

#D055D3

background

#F5F4F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #18193D

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

Preview Lab → · Contrast checker → · Palette generator →