#101d3a

Color #101d3a

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 23.03 Nearest Tailwind class slate-900 #0f172b · ΔE 3.9

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

Conversions

HEX

#101d3a

RGB

rgb(16, 29, 58)

HSL

hsl(221.4, 56.8%, 14.5%)

HSV / HSB

hsv(221.4, 72.4%, 22.7%)

CMYK

cmyk(72.4%, 50%, 0%, 77.3%)

LAB

lab(11.24, 5.65, -20.5)

LCH

lch(11.24, 21.26, 285.41)

OKLCH

oklch(23.7%, 0.0587, 264.23)

HWB

hwb(221.4, 6.3%, 77.3%)

Harmony colors

Complementary

#3a2d10

Analogous

#10323a

#101d3a

#18103a

Triadic

#101d3a

#3a101d

#1d3a10

Split-complementary

#101d3a

#3a1810

#323a10

Tetradic

#101d3a

#2d103a

#3a2d10

#1d3a10

Square

#101d3a

#3a1032

#3a2d10

#103a18

Shades

Color #101d3a mixed toward black.

#0d1830

#0b1327

#080e1d

#050a13

#03050a

Tints

Color #101d3a mixed toward white.

#203973

#2f56ac

#547ad0

#8da7e0

#c6d3ef

Tones

Color #101d3a mixed toward gray.

#131e36

#172033

#1a212f

#1e222c

#212428

Accessibility

Aa White text on this color

16.68:1

Aa Black text on this color

1.26:1

White text reads better on this background (16.68:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#161735 · ΔE 4.3

Deuteranopia

#161533 · ΔE 5.2

Tritanopia

#11302f · ΔE 20.8

Achromatopsia

#1e1e1e · ΔE 14.8

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

Code

CSS

background-color: #101d3a;

Tailwind (arbitrary value)

bg-[#101d3a]

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

#101d3a (#101d3a) is rgb(16, 29, 58) in RGB.

No, #101d3a 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #101d3a, or check how it holds up for accessibility.

Generate a palette → Check contrast