#181A56#181A56

#181A56 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.106 H 274.8°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#181A56
RGB	rgb(24, 26, 86)
HSL	hsl(238, 56%, 22%)
HSV	hsv(238, 72%, 34%)
CMYK	cmyk(72.1%, 69.8%, 0%, 66.3%)
CIE-LAB	lab(13.26, 21.09, -36.63)
CIE-LCH	lch(13.26, 42.26, 299.93°)
OKLab	oklab(26.09% 0.0088 -0.1057)
OKLCH	oklch(26.09% 0.106 274.8)
XYZ	xyz(2.4252, 1.6046, 8.9842)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A56 #565418

analogous

#183956 #181A56 #351856

triadic

#181A56 #56181A #1A5618

tetradic

#181A56 #561839 #565418 #185635

square

#181A56 #561839 #565418 #185635

split-complementary

#181A56 #563518 #395618

monochromatic

#070718 #0B0C26 #181A56 #252886 #3337B6

Accessibility & contrast

On white

15.90

#181A56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#181A56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A56

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A56	#FFFFFF	#000000	##FFFFFF
##181A56	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002558

Deuteranopia (green-blind)

#001F55

Tritanopia (blue-blind)

#002935

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #181a56;
/* rgb */ color: rgb(24, 26, 86);
/* oklch */ color: oklch(26.1% 0.106 274.8);

Tailwind

colors: {
  custom: {
    50: '#5e5686',
    500: '#181a56',
    950: '#000000',
  },
}

SCSS

$custom: #181a56;
$custom-light: #5e5686;
$custom-dark: #000000;

JSON

{
  "hex": "#181a56",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 86
  },
  "hsl": {
    "h": 238.065,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26085,
    "c": 0.10603,
    "h": 274.8
  },
  "luminance": 0.01605
}

Semantic roles & 50–950 ramp

primary

#181A56

secondary

#8D8A3D

accent

#DB48E0

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #181A56

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

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