#183C94#183C94

#183C94 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.151 H 263.8°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#183C94
RGB	rgb(24, 60, 148)
HSL	hsl(223, 72%, 34%)
HSV	hsv(223, 84%, 58%)
CMYK	cmyk(83.8%, 59.5%, 0%, 42%)
CIE-LAB	lab(28.28, 22.01, -51.88)
CIE-LCH	lch(28.28, 56.36, 292.99°)
OKLab	oklab(38.98% -0.0162 -0.15)
OKLCH	oklch(38.98% 0.151 263.8)
XYZ	xyz(7.3359, 5.5631, 28.6984)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C94 #947018

analogous

#187A94 #183C94 #321894

triadic

#183C94 #94183C #3C9418

tetradic

#183C94 #94187A #947018 #189432

square

#183C94 #94187A #947018 #189432

split-complementary

#183C94 #943218 #7A9418

monochromatic

#07112B #0F275F #183C94 #2151C9 #4573E1

Accessibility & contrast

On white

9.94

#183C94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#183C94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C94

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C94	#FFFFFF	#000000	##FFFFFF
##183C94	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004997

Deuteranopia (green-blind)

#003D92

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #183c94;
/* rgb */ color: rgb(24, 60, 148);
/* oklch */ color: oklch(39.0% 0.151 263.8);

Tailwind

colors: {
  custom: {
    50: '#6c71b4',
    500: '#183c94',
    950: '#000000',
  },
}

SCSS

$custom: #183c94;
$custom-light: #6c71b4;
$custom-dark: #000000;

JSON

{
  "hex": "#183c94",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 148
  },
  "hsl": {
    "h": 222.581,
    "s": 72.093,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38975,
    "c": 0.15085,
    "h": 263.8
  },
  "luminance": 0.05564
}

Semantic roles & 50–950 ramp

primary

#183C94

secondary

#C29E46

accent

#BA39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183C94

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

Preview Lab → · Contrast checker → · Palette generator →