#0f3f7f

Color #0f3f7f

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.12 Nearest Tailwind class blue-900 #1c398e · ΔE 4.5

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

Conversions

HEX

#0f3f7f

RGB

rgb(15, 63, 127)

HSL

hsl(214.3, 78.9%, 27.8%)

HSV / HSB

hsv(214.3, 88.2%, 49.8%)

CMYK

cmyk(88.2%, 50.4%, 0%, 50.2%)

LAB

lab(27.26, 10.41, -40.54)

LCH

lch(27.26, 41.86, 284.4)

OKLCH

oklch(37.6%, 0.1195, 257.53)

HWB

hwb(214.3, 5.9%, 50.2%)

Harmony colors

Complementary

#7f4f0f

Analogous

#0f777f

#0f3f7f

#170f7f

Triadic

#0f3f7f

#7f0f3f

#3f7f0f

Split-complementary

#0f3f7f

#7f170f

#777f0f

Tetradic

#0f3f7f

#4f0f7f

#7f4f0f

#3f7f0f

Square

#0f3f7f

#7f0f77

#7f4f0f

#0f7f17

Shades

Color #0f3f7f mixed toward black.

#0c346a

#0a2a55

#071f3f

#05152a

#020a15

Tints

Color #0f3f7f mixed toward white.

#155ab6

#2376e5

#5a99ec

#91bbf2

#c8ddf9

Tones

Color #0f3f7f mixed toward gray.

#184076

#22426c

#2b4363

#34445a

#3e4650

Accessibility

Aa White text on this color

10.31:1

Aa Black text on this color

2.04:1

White text reads better on this background (10.31:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2b2b73 · ΔE 9.3

Deuteranopia

#282570 · ΔE 10.7

Tritanopia

#146967 · ΔE 28.2

Achromatopsia

#404040 · ΔE 21.8

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

Code

CSS

background-color: #0f3f7f;

Tailwind (arbitrary value)

bg-[#0f3f7f]

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

#0f3f7f (#0f3f7f) is rgb(15, 63, 127) in RGB.

No, #0f3f7f 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.

Try it → Accessibility

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 #0f3f7f, or check how it holds up for accessibility.

Generate a palette → Check contrast