#18338D#18338D

#18338D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.153 H 265.9°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#18338D
RGB	rgb(24, 51, 141)
HSL	hsl(226, 71%, 32%)
HSV	hsv(226, 83%, 55%)
CMYK	cmyk(83%, 63.8%, 0%, 44.7%)
CIE-LAB	lab(25.21, 25.42, -52.58)
CIE-LCH	lch(25.21, 58.41, 295.80°)
OKLab	oklab(36.49% -0.0109 -0.1522)
OKLCH	oklch(36.49% 0.153 265.9)
XYZ	xyz(6.3665, 4.4842, 25.7241)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18338D #8D7218

analogous

#186D8D #18338D #38188D

triadic

#18338D #8D1833 #338D18

tetradic

#18338D #8D186D #8D7218 #188D38

square

#18338D #8D186D #8D7218 #188D38

split-complementary

#18338D #8D3818 #6D8D18

monochromatic

#060D24 #0F2059 #18338D #2146C1 #4165DF

Accessibility & contrast

On white

11.07

#18338D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#18338D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18338D

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18338D	#FFFFFF	#000000	##FFFFFF
##18338D	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004190

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #18338d;
/* rgb */ color: rgb(24, 51, 141);
/* oklch */ color: oklch(36.5% 0.153 265.9);

Tailwind

colors: {
  custom: {
    50: '#6b6aaf',
    500: '#18338d',
    950: '#000000',
  },
}

SCSS

$custom: #18338d;
$custom-light: #6b6aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#18338d",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 141
  },
  "hsl": {
    "h": 226.154,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36494,
    "c": 0.15257,
    "h": 265.9
  },
  "luminance": 0.04485
}

Semantic roles & 50–950 ramp

primary

#18338D

secondary

#BFA242

accent

#C43AEE

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #18338D

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

Preview Lab → · Contrast checker → · Palette generator →