#181E48#181E48

#181E48 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.6% C 0.078 H 273.5°. Best body text is #FFFFFF at 15.93:1 contrast (WCAG AA passes).

Color values

HEX	#181E48
RGB	rgb(24, 30, 72)
HSL	hsl(233, 50%, 19%)
HSV	hsv(233, 67%, 28%)
CMYK	cmyk(66.7%, 58.3%, 0%, 71.8%)
CIE-LAB	lab(13.17, 12.53, -27.18)
CIE-LCH	lch(13.17, 29.93, 294.75°)
OKLab	oklab(25.63% 0.0047 -0.0779)
OKLCH	oklch(25.63% 0.078 273.5)
XYZ	xyz(2.0103, 1.5905, 6.3307)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E48 #484218

analogous

#183648 #181E48 #2A1848

triadic

#181E48 #48181E #1E4818

tetradic

#181E48 #481836 #484218 #18482A

square

#181E48 #481836 #484218 #18482A

split-complementary

#181E48 #482A18 #364818

monochromatic

#080A17 #090B1A #181E48 #273176 #3744A4

Accessibility & contrast

On white

15.93

#181E48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#181E48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E48

15.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E48	#FFFFFF	#000000	##FFFFFF
##181E48	1.00	15.93	1.32	15.93
#FFFFFF	15.93	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062449

Deuteranopia (green-blind)

#002047

Tritanopia (blue-blind)

#00282F

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #181e48;
/* rgb */ color: rgb(24, 30, 72);
/* oklch */ color: oklch(25.6% 0.078 273.5);

Tailwind

colors: {
  custom: {
    50: '#5a597b',
    500: '#181e48',
    950: '#000000',
  },
}

SCSS

$custom: #181e48;
$custom-light: #5a597b;
$custom-dark: #000000;

JSON

{
  "hex": "#181e48",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 72
  },
  "hsl": {
    "h": 232.5,
    "s": 50,
    "l": 18.824
  },
  "oklch": {
    "l": 0.2563,
    "c": 0.07801,
    "h": 273.5
  },
  "luminance": 0.01591
}

Semantic roles & 50–950 ramp

primary

#181E48

secondary

#7F773D

accent

#C84EDA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #181E48

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

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