#183A93#183A93

#183A93 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.152 H 264.4°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#183A93
RGB	rgb(24, 58, 147)
HSL	hsl(223, 72%, 34%)
HSV	hsv(223, 84%, 58%)
CMYK	cmyk(83.7%, 60.5%, 0%, 42.4%)
CIE-LAB	lab(27.64, 22.99, -52.31)
CIE-LCH	lch(27.64, 57.14, 293.73°)
OKLab	oklab(38.47% -0.015 -0.1513)
OKLCH	oklch(38.47% 0.152 264.4)
XYZ	xyz(7.1543, 5.3260, 28.2491)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183A93 #937118

analogous

#187793 #183A93 #341893

triadic

#183A93 #93183A #3A9318

tetradic

#183A93 #931877 #937118 #189334

square

#183A93 #931877 #937118 #189334

split-complementary

#183A93 #933418 #779318

monochromatic

#07102A #0F255E #183A93 #214FC8 #4570E1

Accessibility & contrast

On white

10.17

#183A93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#183A93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183A93

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183A93	#FFFFFF	#000000	##FFFFFF
##183A93	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004796

Deuteranopia (green-blind)

#003C91

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #183a93;
/* rgb */ color: rgb(24, 58, 147);
/* oklch */ color: oklch(38.5% 0.152 264.4);

Tailwind

colors: {
  custom: {
    50: '#6c6fb3',
    500: '#183a93',
    950: '#000000',
  },
}

SCSS

$custom: #183a93;
$custom-light: #6c6fb3;
$custom-dark: #000000;

JSON

{
  "hex": "#183a93",
  "rgb": {
    "r": 24,
    "g": 58,
    "b": 147
  },
  "hsl": {
    "h": 223.415,
    "s": 71.93,
    "l": 33.529
  },
  "oklch": {
    "l": 0.3847,
    "c": 0.15201,
    "h": 264.4
  },
  "luminance": 0.05327
}

Semantic roles & 50–950 ramp

primary

#183A93

secondary

#C29F45

accent

#BC39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183A93

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

Preview Lab → · Contrast checker → · Palette generator →