#183A94#183A94

#183A94 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.153 H 264.4°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#183A94
RGB	rgb(24, 58, 148)
HSL	hsl(224, 72%, 34%)
HSV	hsv(224, 84%, 58%)
CMYK	cmyk(83.8%, 60.8%, 0%, 42%)
CIE-LAB	lab(27.73, 23.39, -52.78)
CIE-LCH	lch(27.73, 57.74, 293.90°)
OKLab	oklab(38.56% -0.0149 -0.1527)
OKLCH	oklch(38.56% 0.153 264.4)
XYZ	xyz(7.2331, 5.3575, 28.6641)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A94 #947218

analogous

#187894 #183A94 #341894

triadic

#183A94 #94183A #3A9418

tetradic

#183A94 #941878 #947218 #189434

square

#183A94 #941878 #947218 #189434

split-complementary

#183A94 #943418 #789418

monochromatic

#07112B #0F255F #183A94 #214FC9 #4570E1

Accessibility & contrast

On white

10.14

#183A94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#183A94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A94

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A94	#FFFFFF	#000000	##FFFFFF
##183A94	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004797

Deuteranopia (green-blind)

#003C92

Tritanopia (blue-blind)

#005161

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #183a94;
/* rgb */ color: rgb(24, 58, 148);
/* oklch */ color: oklch(38.6% 0.153 264.4);

Tailwind

colors: {
  custom: {
    50: '#6c6fb4',
    500: '#183a94',
    950: '#000000',
  },
}

SCSS

$custom: #183a94;
$custom-light: #6c6fb4;
$custom-dark: #000000;

JSON

{
  "hex": "#183a94",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 148
  },
  "hsl": {
    "h": 223.548,
    "s": 72.093,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38561,
    "c": 0.15339,
    "h": 264.4
  },
  "luminance": 0.05358
}

Semantic roles & 50–950 ramp

primary

#183A94

secondary

#C2A046

accent

#BD39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183A94

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

Preview Lab → · Contrast checker → · Palette generator →