#183784#183784

#183784 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.135 H 264.2°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#183784
RGB	rgb(24, 55, 132)
HSL	hsl(223, 69%, 31%)
HSV	hsv(223, 82%, 52%)
CMYK	cmyk(81.8%, 58.3%, 0%, 48.2%)
CIE-LAB	lab(25.54, 19.00, -46.45)
CIE-LCH	lch(25.54, 50.18, 292.25°)
OKLab	oklab(36.5% -0.0137 -0.1341)
OKLCH	oklch(36.5% 0.135 264.2)
XYZ	xyz(5.9063, 4.5918, 22.4003)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183784 #846518

analogous

#186D84 #183784 #2F1884

triadic

#183784 #841837 #378418

tetradic

#183784 #84186D #846518 #18842F

square

#183784 #84186D #846518 #18842F

split-complementary

#183784 #842F18 #6D8418

monochromatic

#050C1C #0F2150 #183784 #214DB8 #3B69DB

Accessibility & contrast

On white

10.95

#183784 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#183784 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183784

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183784	#FFFFFF	#000000	##FFFFFF
##183784	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004287

Deuteranopia (green-blind)

#003882

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183784;
/* rgb */ color: rgb(24, 55, 132);
/* oklch */ color: oklch(36.5% 0.135 264.2);

Tailwind

colors: {
  custom: {
    50: '#686da8',
    500: '#183784',
    950: '#000000',
  },
}

SCSS

$custom: #183784;
$custom-light: #686da8;
$custom-dark: #000000;

JSON

{
  "hex": "#183784",
  "rgb": {
    "r": 24,
    "g": 55,
    "b": 132
  },
  "hsl": {
    "h": 222.778,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36496,
    "c": 0.13481,
    "h": 264.2
  },
  "luminance": 0.04593
}

Semantic roles & 50–950 ramp

primary

#183784

secondary

#B89540

accent

#B93CEC

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #183784

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

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