#151e3b

Color #151e3b

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 22.58 Nearest Tailwind class slate-900 #0f172b · ΔE 4.2

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Conversions

HEX

#151e3b

RGB

rgb(21, 30, 59)

HSL

hsl(225.8, 47.5%, 15.7%)

HSV / HSB

hsv(225.8, 64.4%, 23.1%)

CMYK

cmyk(64.4%, 49.2%, 0%, 76.9%)

LAB

lab(11.98, 6.53, -20)

LCH

lch(11.98, 21.04, 288.08)

OKLCH

oklch(24.4%, 0.0568, 268.89)

HWB

hwb(225.8, 8.2%, 76.9%)

Harmony colors

Complementary

#3b3215

Analogous

#15313b

#151e3b

#1f153b

Triadic

#151e3b

#3b151e

#1e3b15

Split-complementary

#151e3b

#3b1f15

#313b15

Tetradic

#151e3b

#32153b

#3b3215

#1e3b15

Square

#151e3b

#3b1531

#3b3215

#153b1f

Shades

Color #151e3b mixed toward black.

#121931

#0e1427

#0b0f1e

#070a14

#04050a

Tints

Color #151e3b mixed toward white.

#283970

#3b54a5

#6079c7

#95a5d9

#cad2ec

Tones

Color #151e3b mixed toward gray.

#182038

#1b2135

#1f2332

#22252e

#25262b

Accessibility

Aa White text on this color

16.4:1

Aa Black text on this color

1.28:1

White text reads better on this background (16.4:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#191936 · ΔE 3.4

Deuteranopia

#191834 · ΔE 3.9

Tritanopia

#163130 · ΔE 20.8

Achromatopsia

#1f1f1f · ΔE 14.8

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

Code

CSS

background-color: #151e3b;

Tailwind (arbitrary value)

bg-[#151e3b]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#151e3b (#151e3b) is rgb(21, 30, 59) in RGB.

No, #151e3b 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

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 #151e3b, or check how it holds up for accessibility.

Generate a palette → Check contrast