#183480#183480

#183480 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.5% C 0.133 H 264.9°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#183480
RGB	rgb(24, 52, 128)
HSL	hsl(224, 68%, 30%)
HSV	hsv(224, 81%, 50%)
CMYK	cmyk(81.3%, 59.4%, 0%, 49.8%)
CIE-LAB	lab(24.35, 19.48, -45.88)
CIE-LCH	lch(24.35, 49.84, 293.00°)
OKLab	oklab(35.5% -0.0118 -0.1325)
OKLCH	oklch(35.5% 0.133 264.9)
XYZ	xyz(5.4996, 4.2080, 20.9403)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183480 #806418

analogous

#186880 #183480 #301880

triadic

#183480 #801834 #348018

tetradic

#183480 #801868 #806418 #188030

square

#183480 #801868 #806418 #188030

split-complementary

#183480 #803018 #688018

monochromatic

#050A1A #0E1F4C #183480 #2249B4 #3964DA

Accessibility & contrast

On white

11.40

#183480 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#183480 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183480

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183480	#FFFFFF	#000000	##FFFFFF
##183480	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F83

Deuteranopia (green-blind)

#00357F

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183480;
/* rgb */ color: rgb(24, 52, 128);
/* oklch */ color: oklch(35.5% 0.133 264.9);

Tailwind

colors: {
  custom: {
    50: '#676ba6',
    500: '#183480',
    950: '#000000',
  },
}

SCSS

$custom: #183480;
$custom-light: #676ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#183480",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 128
  },
  "hsl": {
    "h": 223.846,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.35496,
    "c": 0.13302,
    "h": 264.9
  },
  "luminance": 0.04209
}

Semantic roles & 50–950 ramp

primary

#183480

secondary

#B49540

accent

#BC3DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #183480

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

Preview Lab → · Contrast checker → · Palette generator →