#0a1023

Color #0a1023

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 14.72 Nearest Tailwind class slate-900 #0f172b · ΔE 2

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Conversions

HEX

#0a1023

RGB

rgb(10, 16, 35)

HSL

hsl(225.6, 55.6%, 8.8%)

HSV / HSB

hsv(225.6, 71.4%, 13.7%)

CMYK

cmyk(71.4%, 54.3%, 0%, 86.3%)

LAB

lab(5.03, 3.48, -13.39)

LCH

lch(5.03, 13.83, 284.57)

OKLCH

oklch(17.9%, 0.0403, 268.86)

HWB

hwb(225.6, 3.9%, 86.3%)

Harmony colors

Complementary

#231d0a

Analogous

#0a1c23

#0a1023

#100a23

Triadic

#0a1023

#230a10

#10230a

Split-complementary

#0a1023

#23100a

#1c230a

Tetradic

#0a1023

#1d0a23

#231d0a

#10230a

Square

#0a1023

#230a1c

#231d0a

#0a2310

Shades

Color #0a1023 mixed toward black.

#080d1d

#070b17

#050811

#03050c

#020306

Tints

Color #0a1023 mixed toward white.

#1b2c5f

#2c479c

#4a69cb

#869bdd

#c3cdee

Tones

Color #0a1023 mixed toward gray.

#0c1121

#0e121f

#10131d

#12141b

#141519

Accessibility

Aa White text on this color

18.9:1

Aa Black text on this color

1.11:1

White text reads better on this background (18.9:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#0d0d1f · ΔE 2.1

Deuteranopia

#0c0c1e · ΔE 2.2

Tritanopia

#0a1c1c · ΔE 15.1

Achromatopsia

#111111 · ΔE 10.9

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

Code

CSS

background-color: #0a1023;

Tailwind (arbitrary value)

bg-[#0a1023]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#0a1023 (#0a1023) is rgb(10, 16, 35) in RGB.

No, #0a1023 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 #0a1023, or check how it holds up for accessibility.

Generate a palette → Check contrast