#183C96#183C96

#183C96 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.2% C 0.154 H 264.0°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#183C96
RGB	rgb(24, 60, 150)
HSL	hsl(223, 72%, 34%)
HSV	hsv(223, 84%, 59%)
CMYK	cmyk(84%, 60%, 0%, 41.2%)
CIE-LAB	lab(28.45, 22.82, -52.83)
CIE-LCH	lch(28.45, 57.55, 293.36°)
OKLab	oklab(39.15% -0.0161 -0.1528)
OKLCH	oklch(39.15% 0.154 264)
XYZ	xyz(7.4956, 5.6270, 29.5393)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C96 #967218

analogous

#187B96 #183C96 #331896

triadic

#183C96 #96183C #3C9618

tetradic

#183C96 #96187B #967218 #189633

square

#183C96 #96187B #967218 #189633

split-complementary

#183C96 #963318 #7B9618

monochromatic

#07122C #102761 #183C96 #2051CB #4773E2

Accessibility & contrast

On white

9.88

#183C96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#183C96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C96

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C96	#FFFFFF	#000000	##FFFFFF
##183C96	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004999

Deuteranopia (green-blind)

#003D94

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #183c96;
/* rgb */ color: rgb(24, 60, 150);
/* oklch */ color: oklch(39.2% 0.154 264.0);

Tailwind

colors: {
  custom: {
    50: '#6d71b6',
    500: '#183c96',
    950: '#000000',
  },
}

SCSS

$custom: #183c96;
$custom-light: #6d71b6;
$custom-dark: #000000;

JSON

{
  "hex": "#183c96",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 150
  },
  "hsl": {
    "h": 222.857,
    "s": 72.414,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39154,
    "c": 0.15361,
    "h": 264
  },
  "luminance": 0.05628
}

Semantic roles & 50–950 ramp

primary

#183C96

secondary

#C39F47

accent

#BB39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183C96

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

Preview Lab → · Contrast checker → · Palette generator →