#18336F#18336F

#18336F is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.8% C 0.109 H 263.4°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#18336F
RGB	rgb(24, 51, 111)
HSL	hsl(221, 64%, 26%)
HSV	hsv(221, 78%, 44%)
CMYK	cmyk(78.4%, 54.1%, 0%, 56.5%)
CIE-LAB	lab(22.69, 13.17, -37.77)
CIE-LCH	lch(22.69, 40.00, 289.23°)
OKLab	oklab(33.81% -0.0125 -0.1087)
OKLCH	oklch(33.81% 0.109 263.4)
XYZ	xyz(4.4287, 3.7091, 15.5184)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18336F #6F5418

analogous

#185F6F #18336F #29186F

triadic

#18336F #6F1833 #336F18

tetradic

#18336F #6F185F #6F5418 #186F29

square

#18336F #6F185F #6F5418 #186F29

split-complementary

#18336F #6F2918 #5F6F18

monochromatic

#050C19 #0D1C3D #18336F #234AA1 #2F62D2

Accessibility & contrast

On white

12.06

#18336F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#18336F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18336F

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18336F	#FFFFFF	#000000	##FFFFFF
##18336F	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3A71

Deuteranopia (green-blind)

#00326E

Tritanopia (blue-blind)

#00414B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18336f;
/* rgb */ color: rgb(24, 51, 111);
/* oklch */ color: oklch(33.8% 0.109 263.4);

Tailwind

colors: {
  custom: {
    50: '#636a99',
    500: '#18336f',
    950: '#000000',
  },
}

SCSS

$custom: #18336f;
$custom-light: #636a99;
$custom-dark: #000000;

JSON

{
  "hex": "#18336f",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 111
  },
  "hsl": {
    "h": 221.379,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.33808,
    "c": 0.10938,
    "h": 263.4
  },
  "luminance": 0.0371
}

Semantic roles & 50–950 ramp

primary

#18336F

secondary

#A5853E

accent

#B440E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #18336F

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

Preview Lab → · Contrast checker → · Palette generator →