#18366D#18366D

#18366D is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.102 H 261.3°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#18366D
RGB	rgb(24, 54, 109)
HSL	hsl(219, 64%, 26%)
HSV	hsv(219, 78%, 43%)
CMYK	cmyk(78%, 50.5%, 0%, 57.3%)
CIE-LAB	lab(23.46, 10.20, -35.24)
CIE-LCH	lch(23.46, 36.68, 286.14°)
OKLab	oklab(34.35% -0.0155 -0.1011)
OKLCH	oklch(34.35% 0.102 261.3)
XYZ	xyz(4.4552, 3.9362, 14.9900)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18366D #6D4F18

analogous

#18606D #18366D #24186D

triadic

#18366D #6D1836 #366D18

tetradic

#18366D #6D1860 #6D4F18 #186D24

square

#18366D #6D1860 #6D4F18 #186D24

split-complementary

#18366D #6D2418 #606D18

monochromatic

#060C19 #0D1D3B #18366D #234F9F #2E68D1

Accessibility & contrast

On white

11.75

#18366D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#18366D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18366D

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18366D	#FFFFFF	#000000	##FFFFFF
##18366D	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183C6F

Deuteranopia (green-blind)

#01346C

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #18366d;
/* rgb */ color: rgb(24, 54, 109);
/* oklch */ color: oklch(34.4% 0.102 261.3);

Tailwind

colors: {
  custom: {
    50: '#626c97',
    500: '#18366d',
    950: '#000000',
  },
}

SCSS

$custom: #18366d;
$custom-light: #626c97;
$custom-dark: #000000;

JSON

{
  "hex": "#18366d",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 109
  },
  "hsl": {
    "h": 218.824,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.34352,
    "c": 0.10233,
    "h": 261.3
  },
  "luminance": 0.03937
}

Semantic roles & 50–950 ramp

primary

#18366D

secondary

#A37F3E

accent

#AC41E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18366D

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

Preview Lab → · Contrast checker → · Palette generator →