#123fc1

Color #123fc1

A vivid, highly saturated medium blue.

Closest named color Slate Blue #6a5acd · ΔE 18.24 Nearest Tailwind class blue-800 #193cb8 · ΔE 1.4

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Conversions

HEX

#123fc1

RGB

rgb(18, 63, 193)

HSL

hsl(224.6, 82.9%, 41.4%)

HSV / HSB

hsv(224.6, 90.7%, 75.7%)

CMYK

cmyk(90.7%, 67.4%, 0%, 24.3%)

LAB

lab(32.99, 37.2, -71.14)

LCH

lch(32.99, 80.28, 297.61)

OKLCH

oklch(43.7%, 0.2073, 264.24)

HWB

hwb(224.6, 7.1%, 24.3%)

Harmony colors

Complementary

#c19412

Analogous

#1296c1

#123fc1

#3d12c1

Triadic

#123fc1

#c1123f

#3fc112

Split-complementary

#123fc1

#c13d12

#96c112

Tetradic

#123fc1

#9412c1

#c19412

#3fc112

Square

#123fc1

#c11296

#c19412

#12c13d

Shades

Color #123fc1 mixed toward black.

#0f34a1

#0c2a81

#091f61

#061540

#030a20

Tints

Color #123fc1 mixed toward white.

#1b50ea

#4973ee

#7696f2

#a4b9f6

#d1dcfb

Tones

Color #123fc1 mixed toward gray.

#2146b3

#2f4da4

#3e5495

#4c5b87

#5b6278

Accessibility

Aa White text on this color

8.38:1

Aa Black text on this color

2.51:1

White text reads better on this background (8.38:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2c2cad · ΔE 6.1

Deuteranopia

#2926a7 · ΔE 7.6

Tritanopia

#169a96 · ΔE 42.7

Achromatopsia

#4e4e4e · ΔE 28.6

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

Code

CSS

background-color: #123fc1;

Tailwind (arbitrary value)

bg-[#123fc1]

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

#123fc1 (#123fc1) is rgb(18, 63, 193) in RGB.

No, #123fc1 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 #123fc1, or check how it holds up for accessibility.

Generate a palette → Check contrast