#183187#183187

#183187 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.5% C 0.147 H 266.2°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#183187
RGB	rgb(24, 49, 135)
HSL	hsl(226, 70%, 31%)
HSV	hsv(226, 82%, 53%)
CMYK	cmyk(82.2%, 63.7%, 0%, 47.1%)
CIE-LAB	lab(24.13, 24.41, -50.63)
CIE-LCH	lch(24.13, 56.21, 295.74°)
OKLab	oklab(35.52% -0.0096 -0.1465)
OKLCH	oklch(35.52% 0.147 266.2)
XYZ	xyz(5.8466, 4.1394, 23.4078)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183187 #876E18

analogous

#186887 #183187 #361887

triadic

#183187 #871831 #318718

tetradic

#183187 #871868 #876E18 #188736

square

#183187 #871868 #876E18 #188736

split-complementary

#183187 #873618 #688718

monochromatic

#060B1F #0F1E53 #183187 #2144BB #3D61DC

Accessibility & contrast

On white

11.49

#183187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#183187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183187

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183187	#FFFFFF	#000000	##FFFFFF
##183187	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8A

Deuteranopia (green-blind)

#003485

Tritanopia (blue-blind)

#004757

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #183187;
/* rgb */ color: rgb(24, 49, 135);
/* oklch */ color: oklch(35.5% 0.147 266.2);

Tailwind

colors: {
  custom: {
    50: '#6968ab',
    500: '#183187',
    950: '#000000',
  },
}

SCSS

$custom: #183187;
$custom-light: #6968ab;
$custom-dark: #000000;

JSON

{
  "hex": "#183187",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 135
  },
  "hsl": {
    "h": 226.486,
    "s": 69.811,
    "l": 31.176
  },
  "oklch": {
    "l": 0.35522,
    "c": 0.14679,
    "h": 266.2
  },
  "luminance": 0.0414
}

Semantic roles & 50–950 ramp

primary

#183187

secondary

#BB9F40

accent

#C53BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183187

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

Preview Lab → · Contrast checker → · Palette generator →