#123aff

Color #123aff

A vivid, highly saturated medium blue.

Closest named color Medium Blue #0000cd · ΔE 15.85 Nearest Tailwind class indigo-600 #4f39f6 · ΔE 3.3

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

Conversions

HEX

#123aff

RGB

rgb(18, 58, 255)

HSL

hsl(229.9, 100%, 53.5%)

HSV / HSB

hsv(229.9, 92.9%, 100%)

CMYK

cmyk(92.9%, 77.3%, 0%, 0%)

LAB

lab(38.5, 61.51, -97.51)

LCH

lch(38.5, 115.29, 302.24)

OKLCH

oklch(49.6%, 0.2839, 265.05)

HWB

hwb(229.9, 7.1%, 0%)

Harmony colors

Complementary

#ffd712

Analogous

#12b0ff

#123aff

#6112ff

Triadic

#123aff

#ff123a

#3aff12

Split-complementary

#123aff

#ff6112

#b0ff12

Tetradic

#123aff

#d712ff

#ffd712

#3aff12

Square

#123aff

#ff12b0

#ffd712

#12ff61

Shades

Color #123aff mixed toward black.

#0026e3

#001fb6

#001788

#000f5b

#00082d

Tints

Color #123aff mixed toward white.

#395bff

#617cff

#889cff

#b0bdff

#d7deff

Tones

Color #123aff mixed toward gray.

#2647eb

#3954d7

#4d61c4

#616eb0

#757b9c

Accessibility

Aa White text on this color

6.83:1

Aa Black text on this color

3.07:1

White text reads better on this background (6.83:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#2929e3 · ΔE 5.1

Deuteranopia

#2623dc · ΔE 6.7

Tritanopia

#16c9c3 · ΔE 52.2

Achromatopsia

#5b5b5b · ΔE 32.1

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

Code

CSS

background-color: #123aff;

Tailwind (arbitrary value)

bg-[#123aff]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#123aff (#123aff) is rgb(18, 58, 255) in RGB.

No, #123aff is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

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

Try it → Accessibility

Contrast Checker

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

Try it → Generators

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 #123aff, or check how it holds up for accessibility.

Generate a palette → Check contrast