#183786#183786

#183786 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.138 H 264.3°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#183786
RGB	rgb(24, 55, 134)
HSL	hsl(223, 70%, 31%)
HSV	hsv(223, 82%, 53%)
CMYK	cmyk(82.1%, 59%, 0%, 47.5%)
CIE-LAB	lab(25.70, 19.81, -47.43)
CIE-LCH	lch(25.70, 51.40, 292.67°)
OKLab	oklab(36.67% -0.0136 -0.137)
OKLCH	oklch(36.67% 0.138 264.3)
XYZ	xyz(6.0444, 4.6471, 23.1280)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183786 #866718

analogous

#186E86 #183786 #301886

triadic

#183786 #861837 #378618

tetradic

#183786 #86186E #866718 #188630

square

#183786 #86186E #866718 #188630

split-complementary

#183786 #863018 #6E8618

monochromatic

#050C1E #0F2252 #183786 #214CBA #3C69DC

Accessibility & contrast

On white

10.88

#183786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#183786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183786

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183786	#FFFFFF	#000000	##FFFFFF
##183786	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004289

Deuteranopia (green-blind)

#003884

Tritanopia (blue-blind)

#004B59

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183786;
/* rgb */ color: rgb(24, 55, 134);
/* oklch */ color: oklch(36.7% 0.138 264.3);

Tailwind

colors: {
  custom: {
    50: '#696daa',
    500: '#183786',
    950: '#000000',
  },
}

SCSS

$custom: #183786;
$custom-light: #696daa;
$custom-dark: #000000;

JSON

{
  "hex": "#183786",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 134
  },
  "hsl": {
    "h": 223.091,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36673,
    "c": 0.13766,
    "h": 264.3
  },
  "luminance": 0.04648
}

Semantic roles & 50–950 ramp

primary

#183786

secondary

#BA9740

accent

#BB3BEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183786

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

Preview Lab → · Contrast checker → · Palette generator →