#003fbf

Color #003fbf

A vivid, highly saturated dark blue.

Closest named color Slate Blue #6a5acd · ΔE 18.26 Nearest Tailwind class blue-800 #193cb8 · ΔE 1.5

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

Conversions

HEX

#003fbf

RGB

rgb(0, 63, 191)

HSL

hsl(220.2, 100%, 37.5%)

HSV / HSB

hsv(220.2, 100%, 74.9%)

CMYK

cmyk(100%, 67%, 0%, 25.1%)

LAB

lab(32.51, 35.86, -70.76)

LCH

lch(32.51, 79.33, 296.88)

OKLCH

oklch(43.2%, 0.2072, 262.46)

HWB

hwb(220.2, 0%, 25.1%)

Harmony colors

Complementary

#bf8000

Analogous

#009fbf

#003fbf

#2100bf

Triadic

#003fbf

#bf003f

#3fbf00

Split-complementary

#003fbf

#bf2100

#9fbf00

Tetradic

#003fbf

#8000bf

#bf8000

#3fbf00

Square

#003fbf

#bf009f

#bf8000

#00bf21

Shades

Color #003fbf mixed toward black.

#00359f

#002a80

#002060

#001540

#000b20

Tints

Color #003fbf mixed toward white.

#0051f4

#2a71ff

#6094ff

#95b8ff

#cadbff

Tones

Color #003fbf mixed toward gray.

#1045af

#204a9f

#304f8f

#405580

#505a70

Accessibility

Aa White text on this color

8.53:1

Aa Black text on this color

2.46:1

White text reads better on this background (8.53:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2829ab · ΔE 6.9

Deuteranopia

#2521a6 · ΔE 8.7

Tritanopia

#089994 · ΔE 42.8

Achromatopsia

#4c4c4c · ΔE 28.5

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

Code

CSS

background-color: #003fbf;

Tailwind (arbitrary value)

bg-[#003fbf]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#003fbf (#003fbf) is rgb(0, 63, 191) in RGB.

No, #003fbf 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 #003fbf, or check how it holds up for accessibility.

Generate a palette → Check contrast