#183481#183481

#183481 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.134 H 265.0°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#183481
RGB	rgb(24, 52, 129)
HSL	hsl(224, 69%, 30%)
HSV	hsv(224, 81%, 51%)
CMYK	cmyk(81.4%, 59.7%, 0%, 49.4%)
CIE-LAB	lab(24.43, 19.89, -46.37)
CIE-LCH	lch(24.43, 50.45, 293.21°)
OKLab	oklab(35.59% -0.0118 -0.1339)
OKLCH	oklch(35.59% 0.134 265)
XYZ	xyz(5.5657, 4.2345, 21.2886)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183481 #816518

analogous

#186881 #183481 #311881

triadic

#183481 #811834 #348118

tetradic

#183481 #811868 #816518 #188131

square

#183481 #811868 #816518 #188131

split-complementary

#183481 #813118 #688118

monochromatic

#050A1A #0E1F4D #183481 #2249B5 #3964DA

Accessibility & contrast

On white

11.37

#183481 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#183481 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183481

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183481	#FFFFFF	#000000	##FFFFFF
##183481	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F84

Deuteranopia (green-blind)

#003580

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183481;
/* rgb */ color: rgb(24, 52, 129);
/* oklch */ color: oklch(35.6% 0.134 265.0);

Tailwind

colors: {
  custom: {
    50: '#686ba6',
    500: '#183481',
    950: '#000000',
  },
}

SCSS

$custom: #183481;
$custom-light: #686ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#183481",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 129
  },
  "hsl": {
    "h": 224,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.35586,
    "c": 0.13445,
    "h": 265
  },
  "luminance": 0.04235
}

Semantic roles & 50–950 ramp

primary

#183481

secondary

#B59640

accent

#BD3CEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #183481

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

Preview Lab → · Contrast checker → · Palette generator →