#183D94#183D94

#183D94 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.150 H 263.6°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#183D94
RGB	rgb(24, 61, 148)
HSL	hsl(222, 72%, 34%)
HSV	hsv(222, 84%, 58%)
CMYK	cmyk(83.8%, 58.8%, 0%, 42%)
CIE-LAB	lab(28.56, 21.32, -51.43)
CIE-LCH	lch(28.56, 55.67, 292.52°)
OKLab	oklab(39.18% -0.0168 -0.1486)
OKLCH	oklch(39.18% 0.15 263.6)
XYZ	xyz(7.3888, 5.6689, 28.7160)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D94 #946F18

analogous

#187B94 #183D94 #311894

triadic

#183D94 #94183D #3D9418

tetradic

#183D94 #94187B #946F18 #189431

square

#183D94 #94187B #946F18 #189431

split-complementary

#183D94 #943118 #7B9418

monochromatic

#07122B #0F275F #183D94 #2153C9 #4574E1

Accessibility & contrast

On white

9.84

#183D94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#183D94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D94

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D94	#FFFFFF	#000000	##FFFFFF
##183D94	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004997

Deuteranopia (green-blind)

#003E92

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #183d94;
/* rgb */ color: rgb(24, 61, 148);
/* oklch */ color: oklch(39.2% 0.150 263.6);

Tailwind

colors: {
  custom: {
    50: '#6c71b4',
    500: '#183d94',
    950: '#000000',
  },
}

SCSS

$custom: #183d94;
$custom-light: #6c71b4;
$custom-dark: #000000;

JSON

{
  "hex": "#183d94",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 148
  },
  "hsl": {
    "h": 222.097,
    "s": 72.093,
    "l": 33.725
  },
  "oklch": {
    "l": 0.39185,
    "c": 0.14958,
    "h": 263.6
  },
  "luminance": 0.0567
}

Semantic roles & 50–950 ramp

primary

#183D94

secondary

#C29D46

accent

#B939EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183D94

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

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