#18336D#18336D

#18336D is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.6% C 0.106 H 263.1°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#18336D
RGB	rgb(24, 51, 109)
HSL	hsl(221, 64%, 26%)
HSV	hsv(221, 78%, 43%)
CMYK	cmyk(78%, 53.2%, 0%, 57.3%)
CIE-LAB	lab(22.53, 12.34, -36.73)
CIE-LCH	lch(22.53, 38.75, 288.57°)
OKLab	oklab(33.64% -0.0127 -0.1056)
OKLCH	oklch(33.64% 0.106 263.1)
XYZ	xyz(4.3198, 3.6655, 14.9449)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18336D #6D5218

analogous

#185D6D #18336D #27186D

triadic

#18336D #6D1833 #336D18

tetradic

#18336D #6D185D #6D5218 #186D27

square

#18336D #6D185D #6D5218 #186D27

split-complementary

#18336D #6D2718 #5D6D18

monochromatic

#060C19 #0D1C3B #18336D #234A9F #2E62D1

Accessibility & contrast

On white

12.12

#18336D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#18336D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18336D

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18336D	#FFFFFF	#000000	##FFFFFF
##18336D	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3A6F

Deuteranopia (green-blind)

#00326C

Tritanopia (blue-blind)

#00414A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18336d;
/* rgb */ color: rgb(24, 51, 109);
/* oklch */ color: oklch(33.6% 0.106 263.1);

Tailwind

colors: {
  custom: {
    50: '#626a97',
    500: '#18336d',
    950: '#000000',
  },
}

SCSS

$custom: #18336d;
$custom-light: #626a97;
$custom-dark: #000000;

JSON

{
  "hex": "#18336d",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 109
  },
  "hsl": {
    "h": 220.941,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.33644,
    "c": 0.10638,
    "h": 263.1
  },
  "luminance": 0.03666
}

Semantic roles & 50–950 ramp

primary

#18336D

secondary

#A3833E

accent

#B241E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18336D

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

Preview Lab → · Contrast checker → · Palette generator →