#183D93#183D93

#183D93 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.148 H 263.5°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#183D93
RGB	rgb(24, 61, 147)
HSL	hsl(222, 72%, 34%)
HSV	hsv(222, 84%, 58%)
CMYK	cmyk(83.7%, 58.5%, 0%, 42.4%)
CIE-LAB	lab(28.48, 20.91, -50.95)
CIE-LCH	lch(28.48, 55.08, 292.32°)
OKLab	oklab(39.1% -0.0169 -0.1472)
OKLCH	oklch(39.1% 0.148 263.5)
XYZ	xyz(7.3100, 5.6374, 28.3010)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D93 #936E18

analogous

#187A93 #183D93 #301893

triadic

#183D93 #93183D #3D9318

tetradic

#183D93 #93187A #936E18 #189330

square

#183D93 #93187A #936E18 #189330

split-complementary

#183D93 #933018 #7A9318

monochromatic

#07112A #0F275E #183D93 #2153C8 #4574E1

Accessibility & contrast

On white

9.87

#183D93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#183D93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D93

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D93	#FFFFFF	#000000	##FFFFFF
##183D93	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004996

Deuteranopia (green-blind)

#003E91

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #183d93;
/* rgb */ color: rgb(24, 61, 147);
/* oklch */ color: oklch(39.1% 0.148 263.5);

Tailwind

colors: {
  custom: {
    50: '#6c71b3',
    500: '#183d93',
    950: '#000000',
  },
}

SCSS

$custom: #183d93;
$custom-light: #6c71b3;
$custom-dark: #000000;

JSON

{
  "hex": "#183d93",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 147
  },
  "hsl": {
    "h": 221.951,
    "s": 71.93,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39096,
    "c": 0.14819,
    "h": 263.5
  },
  "luminance": 0.05638
}

Semantic roles & 50–950 ramp

primary

#183D93

secondary

#C29C45

accent

#B839EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183D93

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

Preview Lab → · Contrast checker → · Palette generator →