#181C65#181C65

#181C65 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.0% C 0.125 H 272.6°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#181C65
RGB	rgb(24, 28, 101)
HSL	hsl(237, 62%, 25%)
HSV	hsv(237, 76%, 40%)
CMYK	cmyk(76.2%, 72.3%, 0%, 60.4%)
CIE-LAB	lab(15.30, 25.54, -43.30)
CIE-LCH	lch(15.30, 50.27, 300.53°)
OKLab	oklab(28.03% 0.0057 -0.1252)
OKLCH	oklch(28.03% 0.125 272.6)
XYZ	xyz(3.1401, 1.9640, 12.5230)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C65 #656118

analogous

#184365 #181C65 #3B1865

triadic

#181C65 #65181C #1C6518

tetradic

#181C65 #651843 #656118 #18653B

square

#181C65 #651843 #656118 #18653B

split-complementary

#181C65 #653B18 #436518

monochromatic

#060719 #0C0E34 #181C65 #242A96 #3037C8

Accessibility & contrast

On white

15.08

#181C65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#181C65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C65

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C65	#FFFFFF	#000000	##FFFFFF
##181C65	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A67

Deuteranopia (green-blind)

#002364

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181c65;
/* rgb */ color: rgb(24, 28, 101);
/* oklch */ color: oklch(28.0% 0.125 272.6);

Tailwind

colors: {
  custom: {
    50: '#625892',
    500: '#181c65',
    950: '#000000',
  },
}

SCSS

$custom: #181c65;
$custom-light: #625892;
$custom-dark: #000000;

JSON

{
  "hex": "#181c65",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 101
  },
  "hsl": {
    "h": 236.883,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.28032,
    "c": 0.12533,
    "h": 272.6
  },
  "luminance": 0.01964
}

Semantic roles & 50–950 ramp

primary

#181C65

secondary

#9B963E

accent

#DC43E5

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181C65

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

Preview Lab → · Contrast checker → · Palette generator →