#1851b0

Color #1851b0

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.21 Nearest Tailwind class blue-800 #193cb8 · ΔE 7.4

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

Conversions

HEX

#1851b0

RGB

rgb(24, 81, 176)

HSL

hsl(217.5, 76%, 39.2%)

HSV / HSB

hsv(217.5, 86.4%, 69%)

CMYK

cmyk(86.4%, 54%, 0%, 31%)

LAB

lab(36.39, 18.97, -55.56)

LCH

lch(36.39, 58.71, 288.85)

OKLCH

oklch(45.8%, 0.1627, 260.34)

HWB

hwb(217.5, 9.4%, 31%)

Harmony colors

Complementary

#b07718

Analogous

#189db0

#1851b0

#2b18b0

Triadic

#1851b0

#b01851

#51b018

Split-complementary

#1851b0

#b02b18

#9db018

Tetradic

#1851b0

#7718b0

#b07718

#51b018

Square

#1851b0

#b0189d

#b07718

#18b02b

Shades

Color #1851b0 mixed toward black.

#144393

#103675

#0c2858

#081b3b

#040d1d

Tints

Color #1851b0 mixed toward white.

#1e66dd

#4984e6

#77a3ec

#a4c2f3

#d2e0f9

Tones

Color #1851b0 mixed toward gray.

#2554a3

#315797

#3e5a8a

#4b5e7d

#576171

Accessibility

Aa White text on this color

7.39:1

Aa Black text on this color

2.84:1

White text reads better on this background (7.39:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#39399f · ΔE 9.7

Deuteranopia

#36319b · ΔE 11.7

Tritanopia

#1e918d · ΔE 35.9

Achromatopsia

#565656 · ΔE 25.4

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

Code

CSS

background-color: #1851b0;

Tailwind (arbitrary value)

bg-[#1851b0]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1851b0 (#1851b0) is rgb(24, 81, 176) in RGB.

No, #1851b0 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 #1851b0, or check how it holds up for accessibility.

Generate a palette → Check contrast