#151d2a

Color #151d2a

A muted very dark blue.

Closest named color Black #000000 · ΔE 14.53 Nearest Tailwind class gray-900 #101828 · ΔE 2.6

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Conversions

HEX

#151d2a

RGB

rgb(21, 29, 42)

HSL

hsl(217.1, 33.3%, 12.4%)

HSV / HSB

hsv(217.1, 50%, 16.5%)

CMYK

cmyk(50%, 31%, 0%, 83.5%)

LAB

lab(10.6, 0.69, -9.92)

LCH

lch(10.6, 9.94, 273.98)

OKLCH

oklch(22.9%, 0.028, 259.93)

HWB

hwb(217.1, 8.2%, 83.5%)

Harmony colors

Complementary

#2a2215

Analogous

#15282a

#151d2a

#18152a

Triadic

#151d2a

#2a151d

#1d2a15

Split-complementary

#151d2a

#2a1815

#282a15

Tetradic

#151d2a

#22152a

#2a2215

#1d2a15

Square

#151d2a

#2a1528

#2a2215

#152a18

Shades

Color #151d2a mixed toward black.

#121823

#0e131c

#0b0f15

#070a0e

#040507

Tints

Color #151d2a mixed toward white.

#2e3f5c

#47628d

#6a87b5

#9cafcd

#cdd7e6

Tones

Color #151d2a mixed toward gray.

#171e28

#191e27

#1a1e25

#1c1f23

#1e1f21

Accessibility

Aa White text on this color

16.92:1

Aa Black text on this color

1.24:1

White text reads better on this background (16.92:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#191927 · ΔE 4.8

Deuteranopia

#181827 · ΔE 5.2

Tritanopia

#152524 · ΔE 11.6

Achromatopsia

#1d1d1d · ΔE 8.1

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

Code

CSS

background-color: #151d2a;

Tailwind (arbitrary value)

bg-[#151d2a]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#151d2a (#151d2a) is rgb(21, 29, 42) in RGB.

No, #151d2a 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

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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 #151d2a, or check how it holds up for accessibility.

Generate a palette → Check contrast