#1740a9

Color #1740a9

A vivid, highly saturated dark blue.

Closest named color Slate Blue #6a5acd · ΔE 16.67 Nearest Tailwind class blue-800 #193cb8 · ΔE 2.8

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

Conversions

HEX

#1740a9

RGB

rgb(23, 64, 169)

HSL

hsl(223.2, 76%, 37.6%)

HSV / HSB

hsv(223.2, 86.4%, 66.3%)

CMYK

cmyk(86.4%, 62.1%, 0%, 33.7%)

LAB

lab(31.14, 27.58, -59.94)

LCH

lch(31.14, 65.98, 294.71)

OKLCH

oklch(41.7%, 0.1746, 263.95)

HWB

hwb(223.2, 9%, 33.7%)

Harmony colors

Complementary

#a98017

Analogous

#1789a9

#1740a9

#3717a9

Triadic

#1740a9

#a91740

#40a917

Split-complementary

#1740a9

#a93717

#89a917

Tetradic

#1740a9

#8017a9

#a98017

#40a917

Square

#1740a9

#a91789

#a98017

#17a937

Shades

Color #1740a9 mixed toward black.

#13358d

#0f2b70

#0c2054

#081538

#040b1c

Tints

Color #1740a9 mixed toward white.

#1d51d7

#4471e6

#7395ec

#a2b8f2

#d0dcf9

Tones

Color #1740a9 mixed toward gray.

#23459d

#2f4b90

#3b5084

#485578

#545b6c

Accessibility

Aa White text on this color

8.96:1

Aa Black text on this color

2.34:1

White text reads better on this background (8.96:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2e2e98 · ΔE 6.5

Deuteranopia

#2b2893 · ΔE 8

Tritanopia

#1b8885 · ΔE 37.4

Achromatopsia

#494949 · ΔE 26.6

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

Code

CSS

background-color: #1740a9;

Tailwind (arbitrary value)

bg-[#1740a9]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1740a9 (#1740a9) is rgb(23, 64, 169) in RGB.

No, #1740a9 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 #1740a9, or check how it holds up for accessibility.

Generate a palette → Check contrast