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1D00A5

#1D00A5 closest to Cobalt

#1D00A5 is a dark, vivid blue; the closest named color is Cobalt. In the RGB color model it is made of 11.4% red, 0.0% green and 64.7% blue (rgb(29, 0, 165)). Its HSL value is 251° hue, 100% saturation and 32% lightness, and in CMYK it is 82% cyan, 100% magenta, 0% yellow and 35% black. #1D00A5 is a cool color. White text reads best on it, with a contrast ratio of 13.16:1.

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#1D00A5 color conversion

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Variations of #1D00A5

Shades

Mixed with black: richer and darker.

1D00A518008F1300790E006509005105003D03002B01001A00000A000001

Tints

Mixed with white: lighter and softer.

1D00A52730B0394CBB4D64C5637ACF7B91D894A7E1AEBDE9C8D3F1E3E9F8

Tones

Mixed with gray: calmer and more muted.

1D00A52021A32632A02F3F9E394B9B4355974F5E945B679067708B737886

Hues

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

003E4D003D53003B5B003867002F7F1D00A531009A3F008E490082520075590068

Temperatures

Cooler on the left, warmer on the right.

1D27B81D21B41D1BB01D14AC1D0BA91D00A52219A32826A130309F38389C403F9A

#1D00A5 color harmonies

Complementary

The opposite hue — maximum contrast and energy.

1D00A588A500
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Split complementary

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

1D00A5A56F0035A500
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Analogous

Neighbouring hues — calm, cohesive and natural.

1D00A50035A56F00A5
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Triadic

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

1D00A5A51D0000A51D
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Tetradic

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

1D00A5A5008888A50000A51D
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Square

Four hues spaced at 90° — bold and playful.

1D00A5A5003588A50000A56F
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#1D00A5 for color-blind viewers (and dogs)

How #1D00A5 appears with each type of color vision deficiency (Machado 2009 model) — and to your dog. Try the dog vision simulator →

  • Dog vision 92% similarHow dogs see it · simulated as #0028A3
  • Protanopia 86% similar1.3% of men, 0.02% of women · simulated as #0037A9
  • Protanomaly 89% similar1.3% of men, 0.02% of women · simulated as #002EA7
  • Deuteranopia 92% similar1.2% of men, 0.01% of women · simulated as #0028A3
  • Deuteranomaly 93% similar5% of men, 0.35% of women · simulated as #0022A4
  • Tritanopia 67% similar0.001% of men, 0.03% of women · simulated as #00425F
  • Tritanomaly 88% similar0.0001% of men, 0.0001% of women · simulated as #00298A
  • Achromatopsia 56% similar0.003% of men, 0.003% of women · simulated as #303030
  • Achromatomaly 74% similar0.001% of men, 0.001% of women · simulated as #2C2960

#1D00A5 contrast checker

AaThe quick brown fox jumps over the lazy dog.
13.16:1 Super#1D00A5 text on white
AA normalPassAAA normalPass
AA largePassAAA largePass
AaThe quick brown fox jumps over the lazy dog.
1.60:1 Very poor#1D00A5 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 #1D00A5

Palettes with #1D00A5

#1D00A5 in CSS

/* Cobalt */
.color { color: #1D00A5; }
.background { background-color: #1D00A5; }
.border { border: 1px solid #1D00A5; }

/* Other notations */
color: rgb(29 0 165);
color: hsl(251 100% 32%);
color: oklch(0.337 0.219 270.6);

#1D00A5 FAQ

What color is #1D00A5?

#1D00A5 is a dark, vivid blue. Its closest named color is Cobalt. It belongs to the blue color family and is a cool color.

What is the RGB value of #1D00A5?

#1D00A5 is rgb(29, 0, 165) in RGB, hsl(251, 100%, 32%) in HSL and cmyk(82%, 100%, 0%, 35%) in CMYK.

What is the complementary color of #1D00A5?

The complementary color of #1D00A5 is #88A500, which sits opposite it on the color wheel.

Which text color works on #1D00A5?

White text has the best contrast on #1D00A5: 13.16:1, which meets the WCAG AA requirement of 4.5:1 for normal text.

Is #1D00A5 a warm or cool color?

#1D00A5 is a cool color.