#183879#183879

#183879 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.8% C 0.118 H 262.4°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#183879
RGB	rgb(24, 56, 121)
HSL	hsl(220, 67%, 28%)
HSV	hsv(220, 80%, 47%)
CMYK	cmyk(80.2%, 53.7%, 0%, 52.5%)
CIE-LAB	lab(24.96, 13.76, -40.47)
CIE-LCH	lch(24.96, 42.74, 288.78°)
OKLab	oklab(35.78% -0.0155 -0.1165)
OKLCH	oklch(35.78% 0.118 262.4)
XYZ	xyz(5.2408, 4.4024, 18.6590)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183879 #795918

analogous

#186879 #183879 #281879

triadic

#183879 #791838 #387918

tetradic

#183879 #791868 #795918 #187928

square

#183879 #791868 #795918 #187928

split-complementary

#183879 #792818 #687918

monochromatic

#050C1A #0E2046 #183879 #2250AC #356AD7

Accessibility & contrast

On white

11.17

#183879 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#183879 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183879

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183879	#FFFFFF	#000000	##FFFFFF
##183879	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C407B

Deuteranopia (green-blind)

#003778

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183879;
/* rgb */ color: rgb(24, 56, 121);
/* oklch */ color: oklch(35.8% 0.118 262.4);

Tailwind

colors: {
  custom: {
    50: '#656ea0',
    500: '#183879',
    950: '#000000',
  },
}

SCSS

$custom: #183879;
$custom-light: #656ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#183879",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 121
  },
  "hsl": {
    "h": 220.206,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35782,
    "c": 0.11754,
    "h": 262.4
  },
  "luminance": 0.04403
}

Semantic roles & 50–950 ramp

primary

#183879

secondary

#AE893F

accent

#B13EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #183879

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

Preview Lab → · Contrast checker → · Palette generator →