#181D69#181D69

#181D69 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.6% C 0.130 H 272.0°. Best body text is #FFFFFF at 14.80:1 contrast (WCAG AA passes).

Color values

HEX	#181D69
RGB	rgb(24, 29, 105)
HSL	hsl(236, 63%, 25%)
HSV	hsv(236, 77%, 41%)
CMYK	cmyk(77.1%, 72.4%, 0%, 58.8%)
CIE-LAB	lab(15.97, 26.40, -44.83)
CIE-LCH	lch(15.97, 52.03, 300.49°)
OKLab	oklab(28.64% 0.0045 -0.1297)
OKLCH	oklch(28.64% 0.13 272)
XYZ	xyz(3.3650, 2.0925, 13.5884)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D69 #696418

analogous

#184669 #181D69 #3B1869

triadic

#181D69 #69181D #1D6918

tetradic

#181D69 #691846 #696418 #18693B

square

#181D69 #691846 #696418 #18693B

split-complementary

#181D69 #693B18 #466918

monochromatic

#060719 #0D0F37 #181D69 #232B9B #2F39CD

Accessibility & contrast

On white

14.80

#181D69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#181D69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D69

14.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D69	#FFFFFF	#000000	##FFFFFF
##181D69	1.00	14.80	1.42	14.80
#FFFFFF	14.80	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6B

Deuteranopia (green-blind)

#002468

Tritanopia (blue-blind)

#003240

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181d69;
/* rgb */ color: rgb(24, 29, 105);
/* oklch */ color: oklch(28.6% 0.130 272.0);

Tailwind

colors: {
  custom: {
    50: '#635995',
    500: '#181d69',
    950: '#000000',
  },
}

SCSS

$custom: #181d69;
$custom-light: #635995;
$custom-dark: #000000;

JSON

{
  "hex": "#181d69",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 105
  },
  "hsl": {
    "h": 236.296,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28642,
    "c": 0.12975,
    "h": 272
  },
  "luminance": 0.02093
}

Semantic roles & 50–950 ramp

primary

#181D69

secondary

#9F993E

accent

#DC42E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181D69

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

Preview Lab → · Contrast checker → · Palette generator →