#1f5aff

Color #1f5aff

A vivid, highly saturated medium blue.

Closest named color Medium Slate Blue #7b68ee · ΔE 21.95 Nearest Tailwind class blue-600 #155dfc · ΔE 1.2

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

Conversions

HEX

#1f5aff

RGB

rgb(31, 90, 255)

HSL

hsl(224.2, 100%, 56.1%)

HSV / HSB

hsv(224.2, 87.8%, 100%)

CMYK

cmyk(87.8%, 64.7%, 0%, 0%)

LAB

lab(45.39, 43.62, -86.12)

LCH

lch(45.39, 96.54, 296.86)

OKLCH

oklch(54.6%, 0.251, 264.19)

HWB

hwb(224.2, 12.2%, 0%)

Harmony colors

Complementary

#ffc41f

Analogous

#1fcaff

#1f5aff

#541fff

Triadic

#1f5aff

#ff1f5a

#5aff1f

Split-complementary

#1f5aff

#ff541f

#caff1f

Tetradic

#1f5aff

#c41fff

#ffc41f

#5aff1f

Square

#1f5aff

#ff1fca

#ffc41f

#1fff54

Shades

Color #1f5aff mixed toward black.

#003fee

#0032bf

#00268f

#00195f

#000d30

Tints

Color #1f5aff mixed toward white.

#4476ff

#6a91ff

#8fadff

#b4c8ff

#dae4ff

Tones

Color #1f5aff mixed toward gray.

#3263ec

#446cda

#5775c7

#6a7db4

#7c86a2

Accessibility

Aa White text on this color

5.3:1

Aa Black text on this color

3.96:1

White text reads better on this background (5.3:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4041e5 · ΔE 8.1

Deuteranopia

#3d39de · ΔE 10.2

Tritanopia

#25cdc7 · ΔE 46.7

Achromatopsia

#6b6b6b · ΔE 30.4

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

Code

CSS

background-color: #1f5aff;

Tailwind (arbitrary value)

bg-[#1f5aff]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1f5aff (#1f5aff) is rgb(31, 90, 255) in RGB.

No, #1f5aff 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.

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 #1f5aff, or check how it holds up for accessibility.

Generate a palette → Check contrast