#18388A#18388A

#18388A is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.2% C 0.142 H 264.3°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#18388A
RGB	rgb(24, 56, 138)
HSL	hsl(223, 70%, 32%)
HSV	hsv(223, 83%, 54%)
CMYK	cmyk(82.6%, 59.4%, 0%, 45.9%)
CIE-LAB	lab(26.32, 20.74, -48.91)
CIE-LCH	lch(26.32, 53.13, 292.98°)
OKLab	oklab(37.24% -0.0141 -0.1413)
OKLCH	oklch(37.24% 0.142 264.3)
XYZ	xyz(6.3767, 4.8568, 24.6412)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18388A #8A6A18

analogous

#18718A #18388A #31188A

triadic

#18388A #8A1838 #388A18

tetradic

#18388A #8A1871 #8A6A18 #188A31

square

#18388A #8A1871 #8A6A18 #188A31

split-complementary

#18388A #8A3118 #718A18

monochromatic

#060E22 #0F2356 #18388A #214DBE #3F6BDE

Accessibility & contrast

On white

10.65

#18388A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#18388A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18388A

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18388A	#FFFFFF	#000000	##FFFFFF
##18388A	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #18388a;
/* rgb */ color: rgb(24, 56, 138);
/* oklch */ color: oklch(37.2% 0.142 264.3);

Tailwind

colors: {
  custom: {
    50: '#6a6ead',
    500: '#18388a',
    950: '#000000',
  },
}

SCSS

$custom: #18388a;
$custom-light: #6a6ead;
$custom-dark: #000000;

JSON

{
  "hex": "#18388a",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 138
  },
  "hsl": {
    "h": 223.158,
    "s": 70.37,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37242,
    "c": 0.14202,
    "h": 264.3
  },
  "luminance": 0.04858
}

Semantic roles & 50–950 ramp

primary

#18388A

secondary

#BD9A40

accent

#BB3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #18388A

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

Preview Lab → · Contrast checker → · Palette generator →