#151f35

Color #151f35

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 19.4 Nearest Tailwind class slate-900 #0f172b · ΔE 2.6

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Conversions

HEX

#151f35

RGB

rgb(21, 31, 53)

HSL

hsl(221.3, 43.2%, 14.5%)

HSV / HSB

hsv(221.3, 60.4%, 20.8%)

CMYK

cmyk(60.4%, 41.5%, 0%, 79.2%)

LAB

lab(11.93, 3.37, -15.8)

LCH

lch(11.93, 16.16, 282.04)

OKLCH

oklch(24.2%, 0.0448, 264.75)

HWB

hwb(221.3, 8.2%, 79.2%)

Harmony colors

Complementary

#352b15

Analogous

#152f35

#151f35

#1b1535

Triadic

#151f35

#35151f

#1f3515

Split-complementary

#151f35

#351b15

#2f3515

Tetradic

#151f35

#2b1535

#352b15

#1f3515

Square

#151f35

#35152f

#352b15

#15351b

Shades

Color #151f35 mixed toward black.

#121a2c

#0e1523

#0b0f1a

#070a12

#040509

Tints

Color #151f35 mixed toward white.

#2a3d69

#3e5c9d

#6380c1

#97aad6

#cbd5ea

Tones

Color #151f35 mixed toward gray.

#182032

#1a2130

#1d222d

#20232a

#222428

Accessibility

Aa White text on this color

16.42:1

Aa Black text on this color

1.28:1

White text reads better on this background (16.42:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1a1a31 · ΔE 4.7

Deuteranopia

#191830 · ΔE 5.4

Tritanopia

#162d2c · ΔE 17.1

Achromatopsia

#1f1f1f · ΔE 12.1

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

Code

CSS

background-color: #151f35;

Tailwind (arbitrary value)

bg-[#151f35]

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

#151f35 (#151f35) is rgb(21, 31, 53) in RGB.

No, #151f35 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.

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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 #151f35, or check how it holds up for accessibility.

Generate a palette → Check contrast