#183178#183178

#183178 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.125 H 265.4°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#183178
RGB	rgb(24, 49, 120)
HSL	hsl(224, 67%, 28%)
HSV	hsv(224, 80%, 47%)
CMYK	cmyk(80%, 59.2%, 0%, 52.9%)
CIE-LAB	lab(22.81, 18.33, -43.31)
CIE-LCH	lch(22.81, 47.03, 292.94°)
OKLab	oklab(34.13% -0.01 -0.125)
OKLCH	oklch(34.13% 0.125 265.4)
XYZ	xyz(4.8640, 3.7463, 18.2324)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183178 #785F18

analogous

#186178 #183178 #2F1878

triadic

#183178 #781831 #317818

tetradic

#183178 #781861 #785F18 #18782F

square

#183178 #781861 #785F18 #18782F

split-complementary

#183178 #782F18 #617818

monochromatic

#050A1A #0E1C45 #183178 #2246AB #345ED6

Accessibility & contrast

On white

12.00

#183178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#183178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183178

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183178	#FFFFFF	#000000	##FFFFFF
##183178	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7A

Deuteranopia (green-blind)

#003277

Tritanopia (blue-blind)

#00434F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183178;
/* rgb */ color: rgb(24, 49, 120);
/* oklch */ color: oklch(34.1% 0.125 265.4);

Tailwind

colors: {
  custom: {
    50: '#6568a0',
    500: '#183178',
    950: '#000000',
  },
}

SCSS

$custom: #183178;
$custom-light: #6568a0;
$custom-dark: #000000;

JSON

{
  "hex": "#183178",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 120
  },
  "hsl": {
    "h": 224.375,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.34133,
    "c": 0.12541,
    "h": 265.4
  },
  "luminance": 0.03747
}

Semantic roles & 50–950 ramp

primary

#183178

secondary

#AD903F

accent

#BD3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #183178

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

Preview Lab → · Contrast checker → · Palette generator →