#183D96#183D96

#183D96 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.152 H 263.7°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#183D96
RGB	rgb(24, 61, 150)
HSL	hsl(222, 72%, 34%)
HSV	hsv(222, 84%, 59%)
CMYK	cmyk(84%, 59.3%, 0%, 41.2%)
CIE-LAB	lab(28.73, 22.13, -52.38)
CIE-LCH	lch(28.73, 56.86, 292.90°)
OKLab	oklab(39.36% -0.0167 -0.1514)
OKLCH	oklch(39.36% 0.152 263.7)
XYZ	xyz(7.5485, 5.7328, 29.5569)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183D96 #967118

analogous

#187C96 #183D96 #321896

triadic

#183D96 #96183D #3D9618

tetradic

#183D96 #96187C #967118 #189632

square

#183D96 #96187C #967118 #189632

split-complementary

#183D96 #963218 #7C9618

monochromatic

#07122C #102861 #183D96 #2052CB #4774E2

Accessibility & contrast

On white

9.78

#183D96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#183D96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183D96

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183D96	#FFFFFF	#000000	##FFFFFF
##183D96	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A99

Deuteranopia (green-blind)

#003E94

Tritanopia (blue-blind)

#005463

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #183d96;
/* rgb */ color: rgb(24, 61, 150);
/* oklch */ color: oklch(39.4% 0.152 263.7);

Tailwind

colors: {
  custom: {
    50: '#6d72b6',
    500: '#183d96',
    950: '#000000',
  },
}

SCSS

$custom: #183d96;
$custom-light: #6d72b6;
$custom-dark: #000000;

JSON

{
  "hex": "#183d96",
  "rgb": {
    "r": 24,
    "g": 61,
    "b": 150
  },
  "hsl": {
    "h": 222.381,
    "s": 72.414,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39362,
    "c": 0.15235,
    "h": 263.7
  },
  "luminance": 0.05734
}

Semantic roles & 50–950 ramp

primary

#183D96

secondary

#C39E47

accent

#BA39EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #183D96

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

Preview Lab → · Contrast checker → · Palette generator →