#18336C#18336C

#18336C is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.6% C 0.105 H 262.9°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#18336C
RGB	rgb(24, 51, 108)
HSL	hsl(221, 64%, 26%)
HSV	hsv(221, 78%, 42%)
CMYK	cmyk(77.8%, 52.8%, 0%, 57.6%)
CIE-LAB	lab(22.46, 11.93, -36.21)
CIE-LCH	lch(22.46, 38.12, 288.23°)
OKLab	oklab(33.56% -0.0129 -0.1041)
OKLCH	oklch(33.56% 0.105 262.9)
XYZ	xyz(4.2663, 3.6441, 14.6630)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18336C #6C5118

analogous

#185D6C #18336C #27186C

triadic

#18336C #6C1833 #336C18

tetradic

#18336C #6C185D #6C5118 #186C27

square

#18336C #6C185D #6C5118 #186C27

split-complementary

#18336C #6C2718 #5D6C18

monochromatic

#060C19 #0D1B3A #18336C #234B9E #2E62D0

Accessibility & contrast

On white

12.15

#18336C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#18336C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18336C

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18336C	#FFFFFF	#000000	##FFFFFF
##18336C	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113A6E

Deuteranopia (green-blind)

#00326B

Tritanopia (blue-blind)

#00414A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18336c;
/* rgb */ color: rgb(24, 51, 108);
/* oklch */ color: oklch(33.6% 0.105 262.9);

Tailwind

colors: {
  custom: {
    50: '#626a96',
    500: '#18336c',
    950: '#000000',
  },
}

SCSS

$custom: #18336c;
$custom-light: #626a96;
$custom-dark: #000000;

JSON

{
  "hex": "#18336c",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 108
  },
  "hsl": {
    "h": 220.714,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.33562,
    "c": 0.10486,
    "h": 262.9
  },
  "luminance": 0.03645
}

Semantic roles & 50–950 ramp

primary

#18336C

secondary

#A2823E

accent

#B141E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18336C

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

Preview Lab → · Contrast checker → · Palette generator →