#183C93#183C93

#183C93 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.149 H 263.8°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#183C93
RGB	rgb(24, 60, 147)
HSL	hsl(222, 72%, 34%)
HSV	hsv(222, 84%, 58%)
CMYK	cmyk(83.7%, 59.2%, 0%, 42.4%)
CIE-LAB	lab(28.20, 21.61, -51.41)
CIE-LCH	lch(28.20, 55.76, 292.80°)
OKLab	oklab(38.89% -0.0162 -0.1486)
OKLCH	oklch(38.89% 0.149 263.8)
XYZ	xyz(7.2571, 5.5316, 28.2833)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C93 #936F18

analogous

#187993 #183C93 #311893

triadic

#183C93 #93183C #3C9318

tetradic

#183C93 #931879 #936F18 #189331

square

#183C93 #931879 #936F18 #189331

split-complementary

#183C93 #933118 #799318

monochromatic

#07112A #0F275E #183C93 #2151C8 #4572E1

Accessibility & contrast

On white

9.97

#183C93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#183C93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C93

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C93	#FFFFFF	#000000	##FFFFFF
##183C93	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004896

Deuteranopia (green-blind)

#003D91

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #183c93;
/* rgb */ color: rgb(24, 60, 147);
/* oklch */ color: oklch(38.9% 0.149 263.8);

Tailwind

colors: {
  custom: {
    50: '#6c71b3',
    500: '#183c93',
    950: '#000000',
  },
}

SCSS

$custom: #183c93;
$custom-light: #6c71b3;
$custom-dark: #000000;

JSON

{
  "hex": "#183c93",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 147
  },
  "hsl": {
    "h": 222.439,
    "s": 71.93,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38886,
    "c": 0.14946,
    "h": 263.8
  },
  "luminance": 0.05532
}

Semantic roles & 50–950 ramp

primary

#183C93

secondary

#C29D45

accent

#BA39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183C93

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

Preview Lab → · Contrast checker → · Palette generator →