#183687#183687

#183687 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.140 H 264.7°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#183687
RGB	rgb(24, 54, 135)
HSL	hsl(224, 70%, 31%)
HSV	hsv(224, 82%, 53%)
CMYK	cmyk(82.2%, 60%, 0%, 47.1%)
CIE-LAB	lab(25.51, 20.92, -48.37)
CIE-LCH	lch(25.51, 52.70, 293.39°)
OKLab	oklab(36.55% -0.0129 -0.1398)
OKLCH	oklch(36.55% 0.14 264.7)
XYZ	xyz(6.0675, 4.5811, 23.4814)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183687 #876918

analogous

#186D87 #183687 #311887

triadic

#183687 #871836 #368718

tetradic

#183687 #87186D #876918 #188731

square

#183687 #87186D #876918 #188731

split-complementary

#183687 #873118 #6D8718

monochromatic

#060C1F #0F2153 #183687 #214BBB #3D68DC

Accessibility & contrast

On white

10.96

#183687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#183687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183687

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183687	#FFFFFF	#000000	##FFFFFF
##183687	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428A

Deuteranopia (green-blind)

#003785

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #183687;
/* rgb */ color: rgb(24, 54, 135);
/* oklch */ color: oklch(36.5% 0.140 264.7);

Tailwind

colors: {
  custom: {
    50: '#696cab',
    500: '#183687',
    950: '#000000',
  },
}

SCSS

$custom: #183687;
$custom-light: #696cab;
$custom-dark: #000000;

JSON

{
  "hex": "#183687",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 135
  },
  "hsl": {
    "h": 223.784,
    "s": 69.811,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3655,
    "c": 0.14037,
    "h": 264.7
  },
  "luminance": 0.04582
}

Semantic roles & 50–950 ramp

primary

#183687

secondary

#BB9A40

accent

#BD3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183687

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

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