#183D95#183D95

#183D95 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.151 H 263.6°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#183D95
RGB	rgb(24, 61, 149)
HSL	hsl(222, 72%, 34%)
HSV	hsv(222, 84%, 58%)
CMYK	cmyk(83.9%, 59.1%, 0%, 41.6%)
CIE-LAB	lab(28.64, 21.72, -51.91)
CIE-LCH	lch(28.64, 56.27, 292.71°)
OKLab	oklab(39.27% -0.0167 -0.15)
OKLCH	oklch(39.27% 0.151 263.6)
XYZ	xyz(7.4683, 5.7007, 29.1347)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D95 #957018

analogous

#187C95 #183D95 #321895

triadic

#183D95 #95183D #3D9518

tetradic

#183D95 #95187C #957018 #189532

square

#183D95 #95187C #957018 #189532

split-complementary

#183D95 #953218 #7C9518

monochromatic

#07122C #102760 #183D95 #2053CA #4674E1

Accessibility & contrast

On white

9.81

#183D95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#183D95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D95

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D95	#FFFFFF	#000000	##FFFFFF
##183D95	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A98

Deuteranopia (green-blind)

#003E93

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #183d95;
/* rgb */ color: rgb(24, 61, 149);
/* oklch */ color: oklch(39.3% 0.151 263.6);

Tailwind

colors: {
  custom: {
    50: '#6c72b5',
    500: '#183d95',
    950: '#000000',
  },
}

SCSS

$custom: #183d95;
$custom-light: #6c72b5;
$custom-dark: #000000;

JSON

{
  "hex": "#183d95",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 149
  },
  "hsl": {
    "h": 222.24,
    "s": 72.254,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39273,
    "c": 0.15096,
    "h": 263.6
  },
  "luminance": 0.05702
}

Semantic roles & 50–950 ramp

primary

#183D95

secondary

#C29E46

accent

#B939EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183D95

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

Preview Lab → · Contrast checker → · Palette generator →