#18438F#18438F

#18438F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.135 H 260.9°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#18438F
RGB	rgb(24, 67, 143)
HSL	hsl(218, 71%, 33%)
HSV	hsv(218, 83%, 56%)
CMYK	cmyk(83.2%, 53.1%, 0%, 43.9%)
CIE-LAB	lab(29.89, 15.13, -46.20)
CIE-LCH	lch(29.89, 48.62, 288.13°)
OKLab	oklab(40.07% -0.0214 -0.1332)
OKLCH	oklch(40.07% 0.135 260.9)
XYZ	xyz(7.3400, 6.1908, 26.7894)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18438F #8F6418

analogous

#187E8F #18438F #28188F

triadic

#18438F #8F1843 #438F18

tetradic

#18438F #8F187E #8F6418 #188F28

square

#18438F #8F187E #8F6418 #188F28

split-complementary

#18438F #8F2818 #7E8F18

monochromatic

#061226 #0F2A5B #18438F #215CC3 #427BDF

Accessibility & contrast

On white

9.38

#18438F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#18438F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18438F

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18438F	#FFFFFF	#000000	##FFFFFF
##18438F	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4C92

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #18438f;
/* rgb */ color: rgb(24, 67, 143);
/* oklch */ color: oklch(40.1% 0.135 260.9);

Tailwind

colors: {
  custom: {
    50: '#6a76b0',
    500: '#18438f',
    950: '#000000',
  },
}

SCSS

$custom: #18438f;
$custom-light: #6a76b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18438f",
  "rgb": {
    "r": 24,
    "g": 67,
    "b": 143
  },
  "hsl": {
    "h": 218.319,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40066,
    "c": 0.13487,
    "h": 260.9
  },
  "luminance": 0.06192
}

Semantic roles & 50–950 ramp

primary

#18438F

secondary

#C09343

accent

#AD3AEE

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080811

muted

#7A7B80

Preview Lab

Preview with #18438F

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

Preview Lab → · Contrast checker → · Palette generator →