#183980#183980

#183980 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.126 H 262.9°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#183980
RGB	rgb(24, 57, 128)
HSL	hsl(221, 68%, 30%)
HSV	hsv(221, 81%, 50%)
CMYK	cmyk(81.3%, 55.5%, 0%, 49.8%)
CIE-LAB	lab(25.80, 15.94, -43.52)
CIE-LCH	lch(25.80, 46.35, 290.12°)
OKLab	oklab(36.59% -0.0155 -0.1255)
OKLCH	oklch(36.59% 0.126 262.9)
XYZ	xyz(5.7347, 4.6783, 21.0186)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183980 #805F18

analogous

#186D80 #183980 #2B1880

triadic

#183980 #801839 #398018

tetradic

#183980 #80186D #805F18 #18802B

square

#183980 #80186D #805F18 #18802B

split-complementary

#183980 #802B18 #6D8018

monochromatic

#050B1A #0E224C #183980 #2250B4 #396CDA

Accessibility & contrast

On white

10.85

#183980 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#183980 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183980

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183980	#FFFFFF	#000000	##FFFFFF
##183980	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014282

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #183980;
/* rgb */ color: rgb(24, 57, 128);
/* oklch */ color: oklch(36.6% 0.126 262.9);

Tailwind

colors: {
  custom: {
    50: '#676ea5',
    500: '#183980',
    950: '#000000',
  },
}

SCSS

$custom: #183980;
$custom-light: #676ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#183980",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 128
  },
  "hsl": {
    "h": 220.962,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3659,
    "c": 0.12643,
    "h": 262.9
  },
  "luminance": 0.04679
}

Semantic roles & 50–950 ramp

primary

#183980

secondary

#B48F40

accent

#B43DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #183980

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

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