#183479#183479

#183479 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.123 H 264.3°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#183479
RGB	rgb(24, 52, 121)
HSL	hsl(223, 67%, 28%)
HSV	hsv(223, 80%, 47%)
CMYK	cmyk(80.2%, 57%, 0%, 52.5%)
CIE-LAB	lab(23.77, 16.60, -42.40)
CIE-LCH	lch(23.77, 45.53, 291.38°)
OKLab	oklab(34.88% -0.0123 -0.1223)
OKLCH	oklch(34.88% 0.123 264.3)
XYZ	xyz(5.0546, 4.0301, 18.5969)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183479 #795D18

analogous

#186479 #183479 #2C1879

triadic

#183479 #791834 #347918

tetradic

#183479 #791864 #795D18 #18792C

square

#183479 #791864 #795D18 #18792C

split-complementary

#183479 #792C18 #647918

monochromatic

#050B1A #0E1E46 #183479 #224AAC #3563D7

Accessibility & contrast

On white

11.63

#183479 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#183479 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183479

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183479	#FFFFFF	#000000	##FFFFFF
##183479	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7B

Deuteranopia (green-blind)

#003478

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183479;
/* rgb */ color: rgb(24, 52, 121);
/* oklch */ color: oklch(34.9% 0.123 264.3);

Tailwind

colors: {
  custom: {
    50: '#656aa0',
    500: '#183479',
    950: '#000000',
  },
}

SCSS

$custom: #183479;
$custom-light: #656aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#183479",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 121
  },
  "hsl": {
    "h": 222.68,
    "s": 66.897,
    "l": 28.431
  },
  "oklch": {
    "l": 0.3488,
    "c": 0.12288,
    "h": 264.3
  },
  "luminance": 0.04031
}

Semantic roles & 50–950 ramp

primary

#183479

secondary

#AE8E3F

accent

#B83EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #183479

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

Preview Lab → · Contrast checker → · Palette generator →