#183880#183880

#183880 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.128 H 263.4°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#183880
RGB	rgb(24, 56, 128)
HSL	hsl(222, 68%, 30%)
HSV	hsv(222, 81%, 50%)
CMYK	cmyk(81.3%, 56.3%, 0%, 49.8%)
CIE-LAB	lab(25.50, 16.65, -44.00)
CIE-LCH	lch(25.50, 47.04, 290.73°)
OKLab	oklab(36.37% -0.0148 -0.1269)
OKLCH	oklch(36.37% 0.128 263.4)
XYZ	xyz(5.6858, 4.5804, 21.0023)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183880 #806018

analogous

#186C80 #183880 #2C1880

triadic

#183880 #801838 #388018

tetradic

#183880 #80186C #806018 #18802C

square

#183880 #80186C #806018 #18802C

split-complementary

#183880 #802C18 #6C8018

monochromatic

#050B1A #0E214C #183880 #224FB4 #396ADA

Accessibility & contrast

On white

10.96

#183880 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#183880 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183880

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183880	#FFFFFF	#000000	##FFFFFF
##183880	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004183

Deuteranopia (green-blind)

#00387F

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183880;
/* rgb */ color: rgb(24, 56, 128);
/* oklch */ color: oklch(36.4% 0.128 263.4);

Tailwind

colors: {
  custom: {
    50: '#676ea5',
    500: '#183880',
    950: '#000000',
  },
}

SCSS

$custom: #183880;
$custom-light: #676ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#183880",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 128
  },
  "hsl": {
    "h": 221.538,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36368,
    "c": 0.12775,
    "h": 263.4
  },
  "luminance": 0.04581
}

Semantic roles & 50–950 ramp

primary

#183880

secondary

#B49040

accent

#B63DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #183880

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

Preview Lab → · Contrast checker → · Palette generator →