#18499D#18499D

#18499D is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.5% C 0.147 H 260.6°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#18499D
RGB	rgb(24, 73, 157)
HSL	hsl(218, 73%, 35%)
HSV	hsv(218, 85%, 62%)
CMYK	cmyk(84.7%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(32.68, 16.72, -50.20)
CIE-LCH	lch(32.68, 52.91, 288.42°)
OKLab	oklab(42.53% -0.0241 -0.1448)
OKLCH	oklch(42.53% 0.147 260.6)
XYZ	xyz(8.8428, 7.3925, 32.8526)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18499D #9D6C18

analogous

#188B9D #18499D #2A189D

triadic

#18499D #9D1849 #499D18

tetradic

#18499D #9D188B #9D6C18 #189D2A

square

#18499D #9D188B #9D6C18 #189D2A

split-complementary

#18499D #9D2A18 #8B9D18

monochromatic

#081833 #103068 #18499D #2062D2 #4C84E4

Accessibility & contrast

On white

8.47

#18499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#18499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18499D

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18499D	#FFFFFF	#000000	##FFFFFF
##18499D	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0853A0

Deuteranopia (green-blind)

#00479B

Tritanopia (blue-blind)

#005E6C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18499d;
/* rgb */ color: rgb(24, 73, 157);
/* oklch */ color: oklch(42.5% 0.147 260.6);

Tailwind

colors: {
  custom: {
    50: '#6e7bbb',
    500: '#18499d',
    950: '#000000',
  },
}

SCSS

$custom: #18499d;
$custom-light: #6e7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#18499d",
  "rgb": {
    "r": 24,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 217.895,
    "s": 73.481,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42529,
    "c": 0.14679,
    "h": 260.6
  },
  "luminance": 0.07394
}

Semantic roles & 50–950 ramp

primary

#18499D

secondary

#C5984B

accent

#AC38F0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #18499D

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

Preview Lab → · Contrast checker → · Palette generator →