#104a9d

Color #104a9d

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 13.42 Nearest Tailwind class blue-900 #1c398e · ΔE 6.2

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

Conversions

HEX

#104a9d

RGB

rgb(16, 74, 157)

HSL

hsl(215.3, 81.5%, 33.9%)

HSV / HSB

hsv(215.3, 89.8%, 61.6%)

CMYK

cmyk(89.8%, 52.9%, 0%, 38.4%)

LAB

lab(32.79, 15.43, -50.04)

LCH

lch(32.79, 52.36, 287.14)

OKLCH

oklch(42.6%, 0.1472, 258.8)

HWB

hwb(215.3, 6.3%, 38.4%)

Harmony colors

Complementary

#9d6310

Analogous

#10909d

#104a9d

#1c109d

Triadic

#104a9d

#9d104a

#4a9d10

Split-complementary

#104a9d

#9d1c10

#909d10

Tetradic

#104a9d

#63109d

#9d6310

#4a9d10

Square

#104a9d

#9d1090

#9d6310

#109d1c

Shades

Color #104a9d mixed toward black.

#0d3e83

#0b3169

#08254e

#051934

#030c1a

Tints

Color #104a9d mixed toward white.

#1562d0

#337eea

#669fef

#99bff5

#ccdffa

Tones

Color #104a9d mixed toward gray.

#1c4c91

#274e85

#33507a

#3f526e

#4b5462

Accessibility

Aa White text on this color

8.44:1

Aa Black text on this color

2.49:1

White text reads better on this background (8.44:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#33338e · ΔE 9.8

Deuteranopia

#2f2b8b · ΔE 11.7

Tritanopia

#17817e · ΔE 32.7

Achromatopsia

#4d4d4d · ΔE 24.2

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

Code

CSS

background-color: #104a9d;

Tailwind (arbitrary value)

bg-[#104a9d]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#104a9d (#104a9d) is rgb(16, 74, 157) in RGB.

No, #104a9d 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.

Try it →

Build something with this color

Generate a full palette from #104a9d, or check how it holds up for accessibility.

Generate a palette → Check contrast