#18347D#18347D

#18347D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.129 H 264.7°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#18347D
RGB	rgb(24, 52, 125)
HSL	hsl(223, 68%, 29%)
HSV	hsv(223, 81%, 49%)
CMYK	cmyk(80.8%, 58.4%, 0%, 51%)
CIE-LAB	lab(24.10, 18.25, -44.40)
CIE-LCH	lch(24.10, 48.00, 292.34°)
OKLab	oklab(35.23% -0.012 -0.1281)
OKLCH	oklch(35.23% 0.129 264.7)
XYZ	xyz(5.3050, 4.1302, 19.9157)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18347D #7D6118

analogous

#18677D #18347D #2F187D

triadic

#18347D #7D1834 #347D18

tetradic

#18347D #7D1867 #7D6118 #187D2F

square

#18347D #7D1867 #7D6118 #187D2F

split-complementary

#18347D #7D2F18 #677D18

monochromatic

#050B1A #0E1F4A #18347D #2249B0 #3764D9

Accessibility & contrast

On white

11.50

#18347D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#18347D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18347D

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18347D	#FFFFFF	#000000	##FFFFFF
##18347D	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E80

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #18347d;
/* rgb */ color: rgb(24, 52, 125);
/* oklch */ color: oklch(35.2% 0.129 264.7);

Tailwind

colors: {
  custom: {
    50: '#666ba3',
    500: '#18347d',
    950: '#000000',
  },
}

SCSS

$custom: #18347d;
$custom-light: #666ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#18347d",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 125
  },
  "hsl": {
    "h": 223.366,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35229,
    "c": 0.12869,
    "h": 264.7
  },
  "luminance": 0.04131
}

Semantic roles & 50–950 ramp

primary

#18347D

secondary

#B2923F

accent

#BB3DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18347D

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

Preview Lab → · Contrast checker → · Palette generator →