#1f233e

Color #1f233e

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 19.72 Nearest Tailwind class slate-900 #0f172b · ΔE 5.3

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

Conversions

HEX

#1f233e

RGB

rgb(31, 35, 62)

HSL

hsl(232.3, 33.3%, 18.2%)

HSV / HSB

hsv(232.3, 50%, 24.3%)

CMYK

cmyk(50%, 43.5%, 0%, 75.7%)

LAB

lab(14.63, 6.82, -17.86)

LCH

lch(14.63, 19.12, 290.9)

OKLCH

oklch(26.7%, 0.0506, 276.01)

HWB

hwb(232.3, 12.2%, 75.7%)

Harmony colors

Complementary

#3e3a1f

Analogous

#1f323e

#1f233e

#2a1f3e

Triadic

#1f233e

#3e1f23

#233e1f

Split-complementary

#1f233e

#3e2a1f

#323e1f

Tetradic

#1f233e

#3a1f3e

#3e3a1f

#233e1f

Square

#1f233e

#3e1f32

#3e3a1f

#1f3e2a

Shades

Color #1f233e mixed toward black.

#1a1d34

#151729

#0f111f

#0a0c15

#05060a

Tints

Color #1f233e mixed toward white.

#363d6c

#4d579b

#747db9

#a2a8d1

#d1d4e8

Tones

Color #1f233e mixed toward gray.

#22253b

#242739

#272936

#292b34

#2c2c31

Accessibility

Aa White text on this color

15.35:1

Aa Black text on this color

1.37:1

White text reads better on this background (15.35:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#212139 · ΔE 1.9

Deuteranopia

#212037 · ΔE 2.5

Tritanopia

#1f3433 · ΔE 19.7

Achromatopsia

#252525 · ΔE 14

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

Code

CSS

background-color: #1f233e;

Tailwind (arbitrary value)

bg-[#1f233e]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#1f233e (#1f233e) is rgb(31, 35, 62) in RGB.

No, #1f233e is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

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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

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.

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Build something with this color

Generate a full palette from #1f233e, or check how it holds up for accessibility.

Generate a palette → Check contrast