#183B93#183B93

#183B93 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.151 H 264.1°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#183B93
RGB	rgb(24, 59, 147)
HSL	hsl(223, 72%, 34%)
HSV	hsv(223, 84%, 58%)
CMYK	cmyk(83.7%, 59.9%, 0%, 42.4%)
CIE-LAB	lab(27.92, 22.30, -51.86)
CIE-LCH	lch(27.92, 56.45, 293.27°)
OKLab	oklab(38.68% -0.0156 -0.1499)
OKLCH	oklch(38.68% 0.151 264.1)
XYZ	xyz(7.2052, 5.4278, 28.2660)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183B93 #937018

analogous

#187893 #183B93 #321893

triadic

#183B93 #93183B #3B9318

tetradic

#183B93 #931878 #937018 #189332

square

#183B93 #931878 #937018 #189332

split-complementary

#183B93 #933218 #789318

monochromatic

#07112A #0F265E #183B93 #2150C8 #4571E1

Accessibility & contrast

On white

10.07

#183B93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#183B93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183B93

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183B93	#FFFFFF	#000000	##FFFFFF
##183B93	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004896

Deuteranopia (green-blind)

#003C91

Tritanopia (blue-blind)

#005161

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #183b93;
/* rgb */ color: rgb(24, 59, 147);
/* oklch */ color: oklch(38.7% 0.151 264.1);

Tailwind

colors: {
  custom: {
    50: '#6c70b3',
    500: '#183b93',
    950: '#000000',
  },
}

SCSS

$custom: #183b93;
$custom-light: #6c70b3;
$custom-dark: #000000;

JSON

{
  "hex": "#183b93",
  "rgb": {
    "r": 24,
    "g": 59,
    "b": 147
  },
  "hsl": {
    "h": 222.927,
    "s": 71.93,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38677,
    "c": 0.15074,
    "h": 264.1
  },
  "luminance": 0.05429
}

Semantic roles & 50–950 ramp

primary

#183B93

secondary

#C29E45

accent

#BB39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183B93

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

Preview Lab → · Contrast checker → · Palette generator →