#183582#183582

#183582 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.9% C 0.135 H 264.7°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#183582
RGB	rgb(24, 53, 130)
HSL	hsl(224, 69%, 30%)
HSV	hsv(224, 82%, 51%)
CMYK	cmyk(81.5%, 59.2%, 0%, 49%)
CIE-LAB	lab(24.80, 19.59, -46.40)
CIE-LCH	lch(24.80, 50.36, 292.89°)
OKLab	oklab(35.89% -0.0124 -0.134)
OKLCH	oklch(35.89% 0.135 264.7)
XYZ	xyz(5.6776, 4.3514, 21.6554)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183582 #826518

analogous

#186A82 #183582 #301882

triadic

#183582 #821835 #358218

tetradic

#183582 #82186A #826518 #188230

square

#183582 #82186A #826518 #188230

split-complementary

#183582 #823018 #6A8218

monochromatic

#050B1B #0E204E #183582 #224AB6 #3A66DB

Accessibility & contrast

On white

11.23

#183582 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#183582 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183582

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183582	#FFFFFF	#000000	##FFFFFF
##183582	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004085

Deuteranopia (green-blind)

#003681

Tritanopia (blue-blind)

#004856

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183582;
/* rgb */ color: rgb(24, 53, 130);
/* oklch */ color: oklch(35.9% 0.135 264.7);

Tailwind

colors: {
  custom: {
    50: '#686ba7',
    500: '#183582',
    950: '#000000',
  },
}

SCSS

$custom: #183582;
$custom-light: #686ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#183582",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 130
  },
  "hsl": {
    "h": 223.585,
    "s": 68.831,
    "l": 30.196
  },
  "oklch": {
    "l": 0.35889,
    "c": 0.13457,
    "h": 264.7
  },
  "luminance": 0.04352
}

Semantic roles & 50–950 ramp

primary

#183582

secondary

#B69640

accent

#BC3CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #183582

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

Preview Lab → · Contrast checker → · Palette generator →