#1d3da0

Color #1d3da0

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.75 Nearest Tailwind class blue-900 #1c398e · ΔE 2.7

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#1d3da0

RGB

rgb(29, 61, 160)

HSL

hsl(225.3, 69.3%, 37.1%)

HSV / HSB

hsv(225.3, 81.9%, 62.7%)

CMYK

cmyk(81.9%, 61.9%, 0%, 37.3%)

LAB

lab(29.75, 26.55, -56.78)

LCH

lch(29.75, 62.68, 295.06)

OKLCH

oklch(40.4%, 0.1648, 265.55)

HWB

hwb(225.3, 11.4%, 37.3%)

Harmony colors

Complementary

#a0801d

Analogous

#1d7fa0

#1d3da0

#3e1da0

Triadic

#1d3da0

#a01d3d

#3da01d

Split-complementary

#1d3da0

#a03e1d

#7fa01d

Tetradic

#1d3da0

#801da0

#a0801d

#3da01d

Square

#1d3da0

#a01d7f

#a0801d

#1da03e

Shades

Color #1d3da0 mixed toward black.

#183385

#13296b

#0f1f50

#0a1435

#050a1b

Tints

Color #1d3da0 mixed toward white.

#254ecd

#4a6ede

#7792e6

#a4b7ef

#d2dbf7

Tones

Color #1d3da0 mixed toward gray.

#284395

#33488a

#3e4e7f

#495374

#54596a

Accessibility

Aa White text on this color

9.43:1

Aa Black text on this color

2.23:1

White text reads better on this background (9.43:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2e2e90 · ΔE 5.6

Deuteranopia

#2c298b · ΔE 7

Tritanopia

#1f817d · ΔE 36.4

Achromatopsia

#464646 · ΔE 26.1

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #1d3da0;

Tailwind (arbitrary value)

bg-[#1d3da0]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1d3da0 (#1d3da0) is rgb(29, 61, 160) in RGB.

No, #1d3da0 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #1d3da0, or check how it holds up for accessibility.

Generate a palette → Check contrast