#181C69#181C69

#181C69 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.131 H 272.3°. Best body text is #FFFFFF at 14.90:1 contrast (WCAG AA passes).

Color values

HEX	#181C69
RGB	rgb(24, 28, 105)
HSL	hsl(237, 63%, 25%)
HSV	hsv(237, 77%, 41%)
CMYK	cmyk(77.1%, 73.3%, 0%, 58.8%)
CIE-LAB	lab(15.72, 27.07, -45.24)
CIE-LCH	lch(15.72, 52.72, 300.90°)
OKLab	oklab(28.46% 0.0052 -0.1309)
OKLCH	oklch(28.46% 0.131 272.3)
XYZ	xyz(3.3409, 2.0443, 13.5804)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C69 #696518

analogous

#184469 #181C69 #3C1869

triadic

#181C69 #69181C #1C6918

tetradic

#181C69 #691844 #696518 #18693C

square

#181C69 #691844 #696518 #18693C

split-complementary

#181C69 #693C18 #446918

monochromatic

#060719 #0D0F37 #181C69 #23299B #2F37CD

Accessibility & contrast

On white

14.90

#181C69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#181C69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C69

14.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C69	#FFFFFF	#000000	##FFFFFF
##181C69	1.00	14.90	1.41	14.90
#FFFFFF	14.90	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6B

Deuteranopia (green-blind)

#002368

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181c69;
/* rgb */ color: rgb(24, 28, 105);
/* oklch */ color: oklch(28.5% 0.131 272.3);

Tailwind

colors: {
  custom: {
    50: '#635895',
    500: '#181c69',
    950: '#000000',
  },
}

SCSS

$custom: #181c69;
$custom-light: #635895;
$custom-dark: #000000;

JSON

{
  "hex": "#181c69",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 105
  },
  "hsl": {
    "h": 237.037,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28463,
    "c": 0.13096,
    "h": 272.3
  },
  "luminance": 0.02045
}

Semantic roles & 50–950 ramp

primary

#181C69

secondary

#9F9A3E

accent

#DE42E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181C69

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

Preview Lab → · Contrast checker → · Palette generator →