#181D48#181D48

#181D48 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.080 H 274.3°. Best body text is #FFFFFF at 16.05:1 contrast (WCAG AA passes).

Color values

HEX	#181D48
RGB	rgb(24, 29, 72)
HSL	hsl(234, 50%, 19%)
HSV	hsv(234, 67%, 28%)
CMYK	cmyk(66.7%, 59.7%, 0%, 71.8%)
CIE-LAB	lab(12.86, 13.29, -27.68)
CIE-LCH	lch(12.86, 30.71, 295.64°)
OKLab	oklab(25.4% 0.0059 -0.0793)
OKLCH	oklch(25.4% 0.08 274.3)
XYZ	xyz(1.9854, 1.5406, 6.3224)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D48 #484318

analogous

#183548 #181D48 #2B1848

triadic

#181D48 #48181D #1D4818

tetradic

#181D48 #481835 #484318 #18482B

square

#181D48 #481835 #484318 #18482B

split-complementary

#181D48 #482B18 #354818

monochromatic

#080917 #090B1A #181D48 #272F76 #3742A4

Accessibility & contrast

On white

16.05

#181D48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#181D48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D48

16.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D48	#FFFFFF	#000000	##FFFFFF
##181D48	1.00	16.05	1.31	16.05
#FFFFFF	16.05	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032349

Deuteranopia (green-blind)

#001F47

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181d48;
/* rgb */ color: rgb(24, 29, 72);
/* oklch */ color: oklch(25.4% 0.080 274.3);

Tailwind

colors: {
  custom: {
    50: '#5b587b',
    500: '#181d48',
    950: '#000000',
  },
}

SCSS

$custom: #181d48;
$custom-light: #5b587b;
$custom-dark: #000000;

JSON

{
  "hex": "#181d48",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 72
  },
  "hsl": {
    "h": 233.75,
    "s": 50,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25399,
    "c": 0.07957,
    "h": 274.3
  },
  "luminance": 0.01541
}

Semantic roles & 50–950 ramp

primary

#181D48

secondary

#7F783D

accent

#CB4EDA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #181D48

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

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