#183F96#183F96

#183F96 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.150 H 263.1°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#183F96
RGB	rgb(24, 63, 150)
HSL	hsl(221, 72%, 34%)
HSV	hsv(221, 84%, 59%)
CMYK	cmyk(84%, 58%, 0%, 41.2%)
CIE-LAB	lab(29.29, 20.75, -51.47)
CIE-LCH	lch(29.29, 55.49, 291.95°)
OKLab	oklab(39.78% -0.018 -0.1487)
OKLCH	oklch(39.78% 0.15 263.1)
XYZ	xyz(7.6572, 5.9503, 29.5932)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183F96 #966F18

analogous

#187E96 #183F96 #301896

triadic

#183F96 #96183F #3F9618

tetradic

#183F96 #96187E #966F18 #189630

square

#183F96 #96187E #966F18 #189630

split-complementary

#183F96 #963018 #7E9618

monochromatic

#07132C #102961 #183F96 #2055CB #4777E2

Accessibility & contrast

On white

9.59

#183F96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#183F96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183F96

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183F96	#FFFFFF	#000000	##FFFFFF
##183F96	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B99

Deuteranopia (green-blind)

#003F94

Tritanopia (blue-blind)

#005564

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #183f96;
/* rgb */ color: rgb(24, 63, 150);
/* oklch */ color: oklch(39.8% 0.150 263.1);

Tailwind

colors: {
  custom: {
    50: '#6c73b6',
    500: '#183f96',
    950: '#000000',
  },
}

SCSS

$custom: #183f96;
$custom-light: #6c73b6;
$custom-dark: #000000;

JSON

{
  "hex": "#183f96",
  "rgb": {
    "r": 24,
    "g": 63,
    "b": 150
  },
  "hsl": {
    "h": 221.429,
    "s": 72.414,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39782,
    "c": 0.1498,
    "h": 263.1
  },
  "luminance": 0.05951
}

Semantic roles & 50–950 ramp

primary

#183F96

secondary

#C39C47

accent

#B739EF

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #183F96

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

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