#183E93#183E93

#183E93 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.147 H 263.2°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#183E93
RGB	rgb(24, 62, 147)
HSL	hsl(221, 72%, 34%)
HSV	hsv(221, 84%, 58%)
CMYK	cmyk(83.7%, 57.8%, 0%, 42.4%)
CIE-LAB	lab(28.76, 20.22, -50.49)
CIE-LCH	lch(28.76, 54.39, 291.83°)
OKLab	oklab(39.31% -0.0175 -0.1459)
OKLCH	oklch(39.31% 0.147 263.2)
XYZ	xyz(7.3639, 5.7451, 28.3189)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183E93 #936D18

analogous

#187B93 #183E93 #2F1893

triadic

#183E93 #93183E #3E9318

tetradic

#183E93 #93187B #936D18 #18932F

square

#183E93 #93187B #936D18 #18932F

split-complementary

#183E93 #932F18 #7B9318

monochromatic

#07122A #0F285E #183E93 #2154C8 #4575E1

Accessibility & contrast

On white

9.77

#183E93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#183E93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183E93

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183E93	#FFFFFF	#000000	##FFFFFF
##183E93	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A96

Deuteranopia (green-blind)

#003E91

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #183e93;
/* rgb */ color: rgb(24, 62, 147);
/* oklch */ color: oklch(39.3% 0.147 263.2);

Tailwind

colors: {
  custom: {
    50: '#6c72b3',
    500: '#183e93',
    950: '#000000',
  },
}

SCSS

$custom: #183e93;
$custom-light: #6c72b3;
$custom-dark: #000000;

JSON

{
  "hex": "#183e93",
  "rgb": {
    "r": 24,
    "g": 62,
    "b": 147
  },
  "hsl": {
    "h": 221.463,
    "s": 71.93,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39309,
    "c": 0.14691,
    "h": 263.2
  },
  "luminance": 0.05746
}

Semantic roles & 50–950 ramp

primary

#183E93

secondary

#C29B45

accent

#B739EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #183E93

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

Preview Lab → · Contrast checker → · Palette generator →