#183669#183669

#183669 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.0% C 0.096 H 260.3°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#183669
RGB	rgb(24, 54, 105)
HSL	hsl(218, 63%, 25%)
HSV	hsv(218, 77%, 41%)
CMYK	cmyk(77.1%, 48.6%, 0%, 58.8%)
CIE-LAB	lab(23.18, 8.53, -33.12)
CIE-LCH	lch(23.18, 34.20, 284.45°)
OKLab	oklab(34.04% -0.0162 -0.0949)
OKLCH	oklch(34.04% 0.096 260.3)
XYZ	xyz(4.2447, 3.8520, 13.8817)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183669 #694B18

analogous

#185E69 #183669 #221869

triadic

#183669 #691836 #366918

tetradic

#183669 #69185E #694B18 #186922

square

#183669 #69185E #694B18 #186922

split-complementary

#183669 #692218 #5E6918

monochromatic

#060D19 #0D1C37 #183669 #23509B #2F69CD

Accessibility & contrast

On white

11.86

#183669 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#183669 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183669

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183669	#FFFFFF	#000000	##FFFFFF
##183669	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3B6B

Deuteranopia (green-blind)

#0A3468

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183669;
/* rgb */ color: rgb(24, 54, 105);
/* oklch */ color: oklch(34.0% 0.096 260.3);

Tailwind

colors: {
  custom: {
    50: '#616c94',
    500: '#183669',
    950: '#000000',
  },
}

SCSS

$custom: #183669;
$custom-light: #616c94;
$custom-dark: #000000;

JSON

{
  "hex": "#183669",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 105
  },
  "hsl": {
    "h": 217.778,
    "s": 62.791,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34043,
    "c": 0.09628,
    "h": 260.3
  },
  "luminance": 0.03852
}

Semantic roles & 50–950 ramp

primary

#183669

secondary

#9F7B3E

accent

#A942E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #183669

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

Preview Lab → · Contrast checker → · Palette generator →