#1f358a

Color #1f358a

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 9.53 Nearest Tailwind class blue-900 #1c398e · ΔE 1.5

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

Conversions

HEX

#1f358a

RGB

rgb(31, 53, 138)

HSL

hsl(227.7, 63.3%, 33.1%)

HSV / HSB

hsv(227.7, 77.5%, 54.1%)

CMYK

cmyk(77.5%, 61.6%, 0%, 45.9%)

LAB

lab(25.78, 23.59, -49.78)

LCH

lch(25.78, 55.09, 295.36)

OKLCH

oklch(36.9%, 0.1439, 267.53)

HWB

hwb(227.7, 12.2%, 45.9%)

Harmony colors

Complementary

#8a741f

Analogous

#1f6a8a

#1f358a

#3e1f8a

Triadic

#1f358a

#8a1f35

#358a1f

Split-complementary

#1f358a

#8a3e1f

#6a8a1f

Tetradic

#1f358a

#741f8a

#8a741f

#358a1f

Square

#1f358a

#8a1f6a

#8a741f

#1f8a3e

Shades

Color #1f358a mixed toward black.

#1a2c73

#15235c

#0f1a45

#0a122e

#050917

Tints

Color #1f358a mixed toward white.

#2947b8

#4563d5

#748ae0

#a2b1ea

#d1d8f5

Tones

Color #1f358a mixed toward gray.

#283a81

#313f78

#3a456f

#434a66

#4c4f5d

Accessibility

Aa White text on this color

10.86:1

Aa Black text on this color

1.93:1

White text reads better on this background (10.86:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2a7c · ΔE 4.5

Deuteranopia

#292778 · ΔE 5.4

Tritanopia

#206f6c · ΔE 33

Achromatopsia

#3d3d3d · ΔE 24.8

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

Code

CSS

background-color: #1f358a;

Tailwind (arbitrary value)

bg-[#1f358a]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#1f358a (#1f358a) is rgb(31, 53, 138) in RGB.

No, #1f358a 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.

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Contrast Checker

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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 #1f358a, or check how it holds up for accessibility.

Generate a palette → Check contrast