#18338A#18338A

#18338A is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.148 H 265.8°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#18338A
RGB	rgb(24, 51, 138)
HSL	hsl(226, 70%, 32%)
HSV	hsv(226, 83%, 54%)
CMYK	cmyk(82.6%, 63%, 0%, 45.9%)
CIE-LAB	lab(24.94, 24.23, -51.17)
CIE-LCH	lch(24.94, 56.61, 295.34°)
OKLab	oklab(36.21% -0.0109 -0.148)
OKLCH	oklch(36.21% 0.148 265.8)
XYZ	xyz(6.1463, 4.3961, 24.5644)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18338A #8A6F18

analogous

#186C8A #18338A #36188A

triadic

#18338A #8A1833 #338A18

tetradic

#18338A #8A186C #8A6F18 #188A36

square

#18338A #8A186C #8A6F18 #188A36

split-complementary

#18338A #8A3618 #6C8A18

monochromatic

#060C22 #0F2056 #18338A #2146BE #3F64DE

Accessibility & contrast

On white

11.17

#18338A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#18338A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18338A

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18338A	#FFFFFF	#000000	##FFFFFF
##18338A	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418D

Deuteranopia (green-blind)

#003688

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #18338a;
/* rgb */ color: rgb(24, 51, 138);
/* oklch */ color: oklch(36.2% 0.148 265.8);

Tailwind

colors: {
  custom: {
    50: '#6a6aad',
    500: '#18338a',
    950: '#000000',
  },
}

SCSS

$custom: #18338a;
$custom-light: #6a6aad;
$custom-dark: #000000;

JSON

{
  "hex": "#18338a",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 138
  },
  "hsl": {
    "h": 225.789,
    "s": 70.37,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36209,
    "c": 0.14842,
    "h": 265.8
  },
  "luminance": 0.04397
}

Semantic roles & 50–950 ramp

primary

#18338A

secondary

#BDA040

accent

#C33BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #18338A

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

Preview Lab → · Contrast checker → · Palette generator →