#18366A#18366A

#18366A is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.1% C 0.098 H 260.6°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#18366A
RGB	rgb(24, 54, 106)
HSL	hsl(218, 63%, 25%)
HSV	hsv(218, 77%, 42%)
CMYK	cmyk(77.4%, 49.1%, 0%, 58.4%)
CIE-LAB	lab(23.25, 8.95, -33.65)
CIE-LCH	lch(23.25, 34.82, 284.89°)
OKLab	oklab(34.12% -0.016 -0.0965)
OKLCH	oklch(34.12% 0.098 260.6)
XYZ	xyz(4.2964, 3.8727, 14.1539)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18366A #6A4C18

analogous

#185F6A #18366A #23186A

triadic

#18366A #6A1836 #366A18

tetradic

#18366A #6A185F #6A4C18 #186A23

square

#18366A #6A185F #6A4C18 #186A23

split-complementary

#18366A #6A2318 #5F6A18

monochromatic

#060D19 #0D1D38 #18366A #234F9C #2F69CE

Accessibility & contrast

On white

11.83

#18366A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#18366A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18366A

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18366A	#FFFFFF	#000000	##FFFFFF
##18366A	1.00	11.83	1.77	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3B6C

Deuteranopia (green-blind)

#073469

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18366a;
/* rgb */ color: rgb(24, 54, 106);
/* oklch */ color: oklch(34.1% 0.098 260.6);

Tailwind

colors: {
  custom: {
    50: '#616c95',
    500: '#18366a',
    950: '#000000',
  },
}

SCSS

$custom: #18366a;
$custom-light: #616c95;
$custom-dark: #000000;

JSON

{
  "hex": "#18366a",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 106
  },
  "hsl": {
    "h": 218.049,
    "s": 63.077,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34119,
    "c": 0.0978,
    "h": 260.6
  },
  "luminance": 0.03873
}

Semantic roles & 50–950 ramp

primary

#18366A

secondary

#A07C3E

accent

#AA42E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18366A

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

Preview Lab → · Contrast checker → · Palette generator →