#123d80

Color #123d80

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.14 Nearest Tailwind class blue-900 #1c398e · ΔE 3.6

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Conversions

HEX

#123d80

RGB

rgb(18, 61, 128)

HSL

hsl(216.5, 75.3%, 28.6%)

HSV / HSB

hsv(216.5, 85.9%, 50.2%)

CMYK

cmyk(85.9%, 52.3%, 0%, 49.8%)

LAB

lab(26.8, 12.5, -41.9)

LCH

lch(26.8, 43.72, 286.61)

OKLCH

oklch(37.3%, 0.1228, 259.44)

HWB

hwb(216.5, 7.1%, 49.8%)

Harmony colors

Complementary

#805512

Analogous

#127480

#123d80

#1e1280

Triadic

#123d80

#80123d

#3d8012

Split-complementary

#123d80

#801e12

#748012

Tetradic

#123d80

#551280

#805512

#3d8012

Square

#123d80

#801274

#805512

#12801e

Shades

Color #123d80 mixed toward black.

#0f336b

#0c2955

#091f40

#06142b

#030a15

Tints

Color #123d80 mixed toward white.

#1a56b5

#2a72e1

#5f95e9

#95b8f0

#cadcf8

Tones

Color #123d80 mixed toward gray.

#1b3f77

#24416e

#2d4364

#37455b

#404752

Accessibility

Aa White text on this color

10.47:1

Aa Black text on this color

2:1

White text reads better on this background (10.47:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2b74 · ΔE 8.2

Deuteranopia

#282571 · ΔE 9.7

Tritanopia

#166967 · ΔE 28.9

Achromatopsia

#3f3f3f · ΔE 22.3

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

Code

CSS

background-color: #123d80;

Tailwind (arbitrary value)

bg-[#123d80]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#123d80 (#123d80) is rgb(18, 61, 128) in RGB.

No, #123d80 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.

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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 #123d80, or check how it holds up for accessibility.

Generate a palette → Check contrast