#183875#183875

#183875 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.5% C 0.112 H 261.7°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#183875
RGB	rgb(24, 56, 117)
HSL	hsl(219, 66%, 28%)
HSV	hsv(219, 79%, 46%)
CMYK	cmyk(79.5%, 52.1%, 0%, 54.1%)
CIE-LAB	lab(24.66, 12.10, -38.42)
CIE-LCH	lch(24.66, 40.28, 287.48°)
OKLab	oklab(35.46% -0.0161 -0.1105)
OKLCH	oklch(35.46% 0.112 261.7)
XYZ	xyz(5.0006, 4.3063, 17.3938)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183875 #755518

analogous

#186675 #183875 #271875

triadic

#183875 #751838 #387518

tetradic

#183875 #751866 #755518 #187527

square

#183875 #751866 #755518 #187527

split-complementary

#183875 #752718 #667518

monochromatic

#050C19 #0E2042 #183875 #2250A8 #326AD5

Accessibility & contrast

On white

11.28

#183875 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#183875 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183875

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183875	#FFFFFF	#000000	##FFFFFF
##183875	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133F77

Deuteranopia (green-blind)

#003774

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183875;
/* rgb */ color: rgb(24, 56, 117);
/* oklch */ color: oklch(35.5% 0.112 261.7);

Tailwind

colors: {
  custom: {
    50: '#646e9d',
    500: '#183875',
    950: '#000000',
  },
}

SCSS

$custom: #183875;
$custom-light: #646e9d;
$custom-dark: #000000;

JSON

{
  "hex": "#183875",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 117
  },
  "hsl": {
    "h": 219.355,
    "s": 65.957,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35457,
    "c": 0.11163,
    "h": 261.7
  },
  "luminance": 0.04307
}

Semantic roles & 50–950 ramp

primary

#183875

secondary

#AA853F

accent

#AE3FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #183875

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

Preview Lab → · Contrast checker → · Palette generator →