#183C95#183C95

#183C95 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.152 H 263.9°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#183C95
RGB	rgb(24, 60, 149)
HSL	hsl(223, 72%, 34%)
HSV	hsv(223, 84%, 58%)
CMYK	cmyk(83.9%, 59.7%, 0%, 41.6%)
CIE-LAB	lab(28.37, 22.41, -52.36)
CIE-LCH	lch(28.37, 56.95, 293.18°)
OKLab	oklab(39.07% -0.0161 -0.1514)
OKLCH	oklch(39.07% 0.152 263.9)
XYZ	xyz(7.4154, 5.5949, 29.1170)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183C95 #957118

analogous

#187B95 #183C95 #331895

triadic

#183C95 #95183C #3C9518

tetradic

#183C95 #95187B #957118 #189533

square

#183C95 #95187B #957118 #189533

split-complementary

#183C95 #953318 #7B9518

monochromatic

#07122C #102760 #183C95 #2051CA #4673E1

Accessibility & contrast

On white

9.91

#183C95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#183C95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183C95

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183C95	#FFFFFF	#000000	##FFFFFF
##183C95	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004998

Deuteranopia (green-blind)

#003D93

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #183c95;
/* rgb */ color: rgb(24, 60, 149);
/* oklch */ color: oklch(39.1% 0.152 263.9);

Tailwind

colors: {
  custom: {
    50: '#6c71b5',
    500: '#183c95',
    950: '#000000',
  },
}

SCSS

$custom: #183c95;
$custom-light: #6c71b5;
$custom-dark: #000000;

JSON

{
  "hex": "#183c95",
  "rgb": {
    "r": 24,
    "g": 60,
    "b": 149
  },
  "hsl": {
    "h": 222.72,
    "s": 72.254,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39065,
    "c": 0.15224,
    "h": 263.9
  },
  "luminance": 0.05596
}

Semantic roles & 50–950 ramp

primary

#183C95

secondary

#C29F46

accent

#BB39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183C95

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

Preview Lab → · Contrast checker → · Palette generator →