#183587#183587

#183587 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.142 H 265.1°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#183587
RGB	rgb(24, 53, 135)
HSL	hsl(224, 70%, 31%)
HSV	hsv(224, 82%, 53%)
CMYK	cmyk(82.2%, 60.7%, 0%, 47.1%)
CIE-LAB	lab(25.23, 21.62, -48.83)
CIE-LCH	lch(25.23, 53.40, 293.88°)
OKLab	oklab(36.34% -0.0122 -0.1411)
OKLCH	oklch(36.34% 0.142 265.1)
XYZ	xyz(6.0214, 4.4890, 23.4661)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183587 #876A18

analogous

#186C87 #183587 #321887

triadic

#183587 #871835 #358718

tetradic

#183587 #87186C #876A18 #188732

square

#183587 #87186C #876A18 #188732

split-complementary

#183587 #873218 #6C8718

monochromatic

#060C1F #0F2153 #183587 #2149BB #3D67DC

Accessibility & contrast

On white

11.06

#183587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#183587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183587

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183587	#FFFFFF	#000000	##FFFFFF
##183587	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418A

Deuteranopia (green-blind)

#003785

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183587;
/* rgb */ color: rgb(24, 53, 135);
/* oklch */ color: oklch(36.3% 0.142 265.1);

Tailwind

colors: {
  custom: {
    50: '#696bab',
    500: '#183587',
    950: '#000000',
  },
}

SCSS

$custom: #183587;
$custom-light: #696bab;
$custom-dark: #000000;

JSON

{
  "hex": "#183587",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 135
  },
  "hsl": {
    "h": 224.324,
    "s": 69.811,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3634,
    "c": 0.14167,
    "h": 265.1
  },
  "luminance": 0.0449
}

Semantic roles & 50–950 ramp

primary

#183587

secondary

#BB9B40

accent

#BE3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #183587

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

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