#18366E#18366E

#18366E is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.4% C 0.104 H 261.5°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#18366E
RGB	rgb(24, 54, 110)
HSL	hsl(219, 64%, 26%)
HSV	hsv(219, 78%, 43%)
CMYK	cmyk(78.2%, 50.9%, 0%, 56.9%)
CIE-LAB	lab(23.53, 10.61, -35.76)
CIE-LCH	lch(23.53, 37.30, 286.53°)
OKLab	oklab(34.43% -0.0153 -0.1027)
OKLCH	oklch(34.43% 0.104 261.5)
XYZ	xyz(4.5093, 3.9578, 15.2751)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18366E #6E5018

analogous

#18616E #18366E #25186E

triadic

#18366E #6E1836 #366E18

tetradic

#18366E #6E1861 #6E5018 #186E25

square

#18366E #6E1861 #6E5018 #186E25

split-complementary

#18366E #6E2518 #616E18

monochromatic

#050C19 #0D1D3C #18366E #234FA0 #2F68D2

Accessibility & contrast

On white

11.72

#18366E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#18366E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18366E

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18366E	#FFFFFF	#000000	##FFFFFF
##18366E	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163C70

Deuteranopia (green-blind)

#00346D

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #18366e;
/* rgb */ color: rgb(24, 54, 110);
/* oklch */ color: oklch(34.4% 0.104 261.5);

Tailwind

colors: {
  custom: {
    50: '#626c98',
    500: '#18366e',
    950: '#000000',
  },
}

SCSS

$custom: #18366e;
$custom-light: #626c98;
$custom-dark: #000000;

JSON

{
  "hex": "#18366e",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 110
  },
  "hsl": {
    "h": 219.07,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.3443,
    "c": 0.10384,
    "h": 261.5
  },
  "luminance": 0.03958
}

Semantic roles & 50–950 ramp

primary

#18366E

secondary

#A4803E

accent

#AD41E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #18366E

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

Preview Lab → · Contrast checker → · Palette generator →