#183B94#183B94

#183B94 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.152 H 264.1°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#183B94
RGB	rgb(24, 59, 148)
HSL	hsl(223, 72%, 34%)
HSV	hsv(223, 84%, 58%)
CMYK	cmyk(83.8%, 60.1%, 0%, 42%)
CIE-LAB	lab(28.01, 22.70, -52.33)
CIE-LCH	lch(28.01, 57.05, 293.45°)
OKLab	oklab(38.77% -0.0155 -0.1513)
OKLCH	oklch(38.77% 0.152 264.1)
XYZ	xyz(7.2840, 5.4594, 28.6811)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B94 #947118

analogous

#187994 #183B94 #331894

triadic

#183B94 #94183B #3B9418

tetradic

#183B94 #941879 #947118 #189433

square

#183B94 #941879 #947118 #189433

split-complementary

#183B94 #943318 #799418

monochromatic

#07112B #0F265F #183B94 #2150C9 #4571E1

Accessibility & contrast

On white

10.04

#183B94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#183B94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B94

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B94	#FFFFFF	#000000	##FFFFFF
##183B94	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004897

Deuteranopia (green-blind)

#003D92

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #183b94;
/* rgb */ color: rgb(24, 59, 148);
/* oklch */ color: oklch(38.8% 0.152 264.1);

Tailwind

colors: {
  custom: {
    50: '#6c70b4',
    500: '#183b94',
    950: '#000000',
  },
}

SCSS

$custom: #183b94;
$custom-light: #6c70b4;
$custom-dark: #000000;

JSON

{
  "hex": "#183b94",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 148
  },
  "hsl": {
    "h": 223.065,
    "s": 72.093,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38767,
    "c": 0.15213,
    "h": 264.1
  },
  "luminance": 0.0546
}

Semantic roles & 50–950 ramp

primary

#183B94

secondary

#C29F46

accent

#BB39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183B94

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

Preview Lab → · Contrast checker → · Palette generator →