#1f3563

Color #1f3563

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 23.23 Nearest Tailwind class blue-950 #162456 · ΔE 5.6

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

Conversions

HEX

#1f3563

RGB

rgb(31, 53, 99)

HSL

hsl(220.6, 52.3%, 25.5%)

HSV / HSB

hsv(220.6, 68.7%, 38.8%)

CMYK

cmyk(68.7%, 46.5%, 0%, 61.2%)

LAB

lab(22.79, 8.03, -29.83)

LCH

lch(22.79, 30.89, 285.07)

OKLCH

oklch(33.7%, 0.0857, 263.3)

HWB

hwb(220.6, 12.2%, 61.2%)

Harmony colors

Complementary

#634d1f

Analogous

#1f5763

#1f3563

#2b1f63

Triadic

#1f3563

#631f35

#35631f

Split-complementary

#1f3563

#632b1f

#57631f

Tetradic

#1f3563

#4d1f63

#634d1f

#35631f

Square

#1f3563

#631f57

#634d1f

#1f632b

Shades

Color #1f3563 mixed toward black.

#1a2c53

#152342

#101b32

#0a1221

#050911

Tints

Color #1f3563 mixed toward white.

#2e4f93

#3e69c3

#6e8ed2

#9fb4e1

#cfd9f0

Tones

Color #1f3563 mixed toward gray.

#25375d

#2a3958

#303b52

#363d4c

#3b3f47

Accessibility

Aa White text on this color

12.02:1

Aa Black text on this color

1.75:1

White text reads better on this background (12.02:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2a5a · ΔE 6

Deuteranopia

#292758 · ΔE 6.8

Tritanopia

#205351 · ΔE 24.6

Achromatopsia

#363636 · ΔE 18.6

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

Code

CSS

background-color: #1f3563;

Tailwind (arbitrary value)

bg-[#1f3563]

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

#1f3563 (#1f3563) is rgb(31, 53, 99) in RGB.

No, #1f3563 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 #1f3563, or check how it holds up for accessibility.

Generate a palette → Check contrast