#181A9E#181A9E

#181A9E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.4% C 0.200 H 268.9°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#181A9E
RGB	rgb(24, 26, 158)
HSL	hsl(239, 74%, 36%)
HSV	hsv(239, 85%, 62%)
CMYK	cmyk(84.8%, 83.5%, 0%, 38%)
CIE-LAB	lab(21.58, 46.74, -69.05)
CIE-LCH	lch(21.58, 83.38, 304.10°)
OKLab	oklab(34.43% -0.0039 -0.1999)
OKLCH	oklch(34.43% 0.2 268.9)
XYZ	xyz(6.9155, 3.4008, 32.6331)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A9E #9E9C18

analogous

#185D9E #181A9E #59189E

triadic

#181A9E #9E181A #1A9E18

tetradic

#181A9E #9E185D #9E9C18 #189E59

square

#181A9E #9E185D #9E9C18 #189E59

split-complementary

#181A9E #9E5918 #5D9E18

monochromatic

#080934 #101169 #181A9E #2023D3 #4D4FE4

Accessibility & contrast

On white

12.50

#181A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#181A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A9E

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A9E	#FFFFFF	#000000	##FFFFFF
##181A9E	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA2

Deuteranopia (green-blind)

#002D9C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #181a9e;
/* rgb */ color: rgb(24, 26, 158);
/* oklch */ color: oklch(34.4% 0.200 268.9);

Tailwind

colors: {
  custom: {
    50: '#725abc',
    500: '#181a9e',
    950: '#000000',
  },
}

SCSS

$custom: #181a9e;
$custom-light: #725abc;
$custom-dark: #000000;

JSON

{
  "hex": "#181a9e",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 158
  },
  "hsl": {
    "h": 239.104,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34431,
    "c": 0.19997,
    "h": 268.9
  },
  "luminance": 0.03402
}

Semantic roles & 50–950 ramp

primary

#181A9E

secondary

#C6C44C

accent

#EE38F0

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #181A9E

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

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