#183673#183673

#183673 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.8% C 0.111 H 262.5°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#183673
RGB	rgb(24, 54, 115)
HSL	hsl(220, 65%, 27%)
HSV	hsv(220, 79%, 45%)
CMYK	cmyk(79.1%, 53%, 0%, 54.9%)
CIE-LAB	lab(23.90, 12.69, -38.37)
CIE-LCH	lch(23.90, 40.41, 288.30°)
OKLab	oklab(34.83% -0.0146 -0.1104)
OKLCH	oklch(34.83% 0.111 262.5)
XYZ	xyz(4.7893, 4.0698, 16.7495)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183673 #735518

analogous

#186473 #183673 #281873

triadic

#183673 #731836 #367318

tetradic

#183673 #731864 #735518 #187328

square

#183673 #731864 #735518 #187328

split-complementary

#183673 #732818 #647318

monochromatic

#050C19 #0D1E40 #183673 #234EA6 #3167D4

Accessibility & contrast

On white

11.58

#183673 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#183673 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183673

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183673	#FFFFFF	#000000	##FFFFFF
##183673	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#103D75

Deuteranopia (green-blind)

#003572

Tritanopia (blue-blind)

#00454F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183673;
/* rgb */ color: rgb(24, 54, 115);
/* oklch */ color: oklch(34.8% 0.111 262.5);

Tailwind

colors: {
  custom: {
    50: '#646c9c',
    500: '#183673',
    950: '#000000',
  },
}

SCSS

$custom: #183673;
$custom-light: #646c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#183673",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 115
  },
  "hsl": {
    "h": 220.22,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.3483,
    "c": 0.11133,
    "h": 262.5
  },
  "luminance": 0.0407
}

Semantic roles & 50–950 ramp

primary

#183673

secondary

#A8853F

accent

#B13FE8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183673

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

Preview Lab → · Contrast checker → · Palette generator →