#183161#183161

#183161 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.2% C 0.091 H 261.9°. Best body text is #FFFFFF at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#183161
RGB	rgb(24, 49, 97)
HSL	hsl(219, 60%, 24%)
HSV	hsv(219, 75%, 38%)
CMYK	cmyk(75.3%, 49.5%, 0%, 62%)
CIE-LAB	lab(21.03, 8.79, -31.35)
CIE-LCH	lch(21.03, 32.56, 285.66°)
OKLab	oklab(32.21% -0.0127 -0.0898)
OKLCH	oklch(32.21% 0.091 261.9)
XYZ	xyz(3.6319, 3.2535, 11.7435)
Luminance	0.0325 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183161 #614818

analogous

#185561 #183161 #231861

triadic

#183161 #611831 #316118

tetradic

#183161 #611855 #614818 #186123

square

#183161 #611855 #614818 #186123

split-complementary

#183161 #612318 #556118

monochromatic

#060C19 #0C1830 #183161 #244A92 #3063C3

Accessibility & contrast

On white

12.72

#183161 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#183161 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183161

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183161	#FFFFFF	#000000	##FFFFFF
##183161	1.00	12.72	1.65	12.72
#FFFFFF	12.72	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183663

Deuteranopia (green-blind)

#082F60

Tritanopia (blue-blind)

#003C44

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #183161;
/* rgb */ color: rgb(24, 49, 97);
/* oklch */ color: oklch(32.2% 0.091 261.9);

Tailwind

colors: {
  custom: {
    50: '#5f688e',
    500: '#183161',
    950: '#000000',
  },
}

SCSS

$custom: #183161;
$custom-light: #5f688e;
$custom-dark: #000000;

JSON

{
  "hex": "#183161",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 97
  },
  "hsl": {
    "h": 219.452,
    "s": 60.331,
    "l": 23.725
  },
  "oklch": {
    "l": 0.32214,
    "c": 0.09071,
    "h": 261.9
  },
  "luminance": 0.03254
}

Semantic roles & 50–950 ramp

primary

#183161

secondary

#97793D

accent

#AD44E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #183161

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

Preview Lab → · Contrast checker → · Palette generator →