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1900BB

#1900BB closest to Too Dark Tonight

#1900BB is a dark, vivid blue; the closest named color is Too Dark Tonight. In the RGB color model it is made of 9.8% red, 0.0% green and 73.3% blue (rgb(25, 0, 187)). Its HSL value is 248° hue, 100% saturation and 37% lightness, and in CMYK it is 87% cyan, 100% magenta, 0% yellow and 27% black. #1900BB is a cool color. White text reads best on it, with a contrast ratio of 11.94:1.

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#1900BB color conversion

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HSB / HSV
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CMYK
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CIELCh
CIELUV
OKLCH

Variations of #1900BB

Shades

Mixed with black: richer and darker.

1900BB1400A210008A0B007307005C04004602003201001F00000D000002

Tints

Mixed with white: lighter and softer.

1900BB2235C43451CD4969D56080DD7995E492ABEBADC0F1C7D5F6E3EAFB

Tones

Mixed with gray: calmer and more muted.

1900BB1B25B72237B22B44AD354FA84159A24D629D596A96667290737988

Hues

The same lightness and chroma, rotated around the color wheel.

00465500455C00436400416F003A841900BB3300AF4300A25000955A0087620078

Temperatures

Cooler on the left, warmer on the right.

162AC91724C6171EC41817C1180DBE1900BB1E1CB8252AB52D34B2353DAE3E44AB

#1900BB color harmonies

Complementary

The opposite hue — maximum contrast and energy.

1900BBA2BB00
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Split complementary

The two hues next to the complement — contrast with less tension.

1900BBBB760045BB00
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Analogous

Neighbouring hues — calm, cohesive and natural.

1900BB0044BB7700BB
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Triadic

Three hues evenly spaced at 120° — vibrant yet balanced.

1900BBBB190000BB19
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Tetradic

Two complementary pairs — rich, best with one dominant color.

1900BBBB00A2A2BB0000BB19
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Square

Four hues spaced at 90° — bold and playful.

1900BBBB0044A2BB0000BB76
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#1900BB for color-blind viewers (and dogs)

How #1900BB appears with each type of color vision deficiency (Machado 2009 model) — and to your dog. Try the dog vision simulator →

  • Dog vision 91% similarHow dogs see it · simulated as #002DB8
  • Protanopia 84% similar1.3% of men, 0.02% of women · simulated as #003FBF
  • Protanomaly 88% similar1.3% of men, 0.02% of women · simulated as #0035BD
  • Deuteranopia 91% similar1.2% of men, 0.01% of women · simulated as #002DB8
  • Deuteranomaly 93% similar5% of men, 0.35% of women · simulated as #0027BA
  • Tritanopia 64% similar0.001% of men, 0.03% of women · simulated as #004C6C
  • Tritanomaly 87% similar0.0001% of men, 0.0001% of women · simulated as #00309D
  • Achromatopsia 51% similar0.003% of men, 0.003% of women · simulated as #373737
  • Achromatomaly 71% similar0.001% of men, 0.001% of women · simulated as #312F6D

#1900BB contrast checker

AaThe quick brown fox jumps over the lazy dog.
11.94:1 Very good#1900BB text on white
AA normalPassAAA normalPass
AA largePassAAA largePass
AaThe quick brown fox jumps over the lazy dog.
1.76:1 Very poor#1900BB text on black
AA normalFailAAA normalFail
AA largeFailAAA largeFail

Need another background? Pick any pair in the palette generator and open the contrast panel.

Colors similar to #1900BB

Palettes with #1900BB

#1900BB in CSS

/* Too Dark Tonight */
.color { color: #1900BB; }
.background { background-color: #1900BB; }
.border { border: 1px solid #1900BB; }

/* Other notations */
color: rgb(25 0 187);
color: hsl(248 100% 37%);
color: oklch(0.365 0.243 268.1);

#1900BB FAQ

What color is #1900BB?

#1900BB is a dark, vivid blue. Its closest named color is Too Dark Tonight. It belongs to the blue color family and is a cool color.

What is the RGB value of #1900BB?

#1900BB is rgb(25, 0, 187) in RGB, hsl(248, 100%, 37%) in HSL and cmyk(87%, 100%, 0%, 27%) in CMYK.

What is the complementary color of #1900BB?

The complementary color of #1900BB is #A2BB00, which sits opposite it on the color wheel.

Which text color works on #1900BB?

White text has the best contrast on #1900BB: 11.94:1, which meets the WCAG AA requirement of 4.5:1 for normal text.

Is #1900BB a warm or cool color?

#1900BB is a cool color.