#15559e

Color #15559e

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 18.34 Nearest Tailwind class sky-800 #00598a · ΔE 5.2

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

Conversions

HEX

#15559e

RGB

rgb(21, 85, 158)

HSL

hsl(212, 76.5%, 35.1%)

HSV / HSB

hsv(212, 86.7%, 62%)

CMYK

cmyk(86.7%, 46.2%, 0%, 38%)

LAB

lab(36.22, 8.78, -45.1)

LCH

lch(36.22, 45.95, 281.02)

OKLCH

oklch(45.3%, 0.134, 255.17)

HWB

hwb(212, 8.2%, 38%)

Harmony colors

Complementary

#9e5e15

Analogous

#15999e

#15559e

#1a159e

Triadic

#15559e

#9e1555

#559e15

Split-complementary

#15559e

#9e1a15

#999e15

Tetradic

#15559e

#5e159e

#9e5e15

#559e15

Square

#15559e

#9e1599

#9e5e15

#159e1a

Shades

Color #15559e mixed toward black.

#124784

#0e3969

#0b2a4f

#071c35

#040e1a

Tints

Color #15559e mixed toward white.

#1c6fcf

#3c8be5

#6da8ec

#9ec5f2

#cee2f9

Tones

Color #15559e mixed toward gray.

#205693

#2c5687

#37577c

#435870

#4e5965

Accessibility

Aa White text on this color

7.43:1

Aa Black text on this color

2.83:1

White text reads better on this background (7.43:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3b3b91 · ΔE 12

Deuteranopia

#37338d · ΔE 14

Tritanopia

#1c8582 · ΔE 30.2

Achromatopsia

#555555 · ΔE 22.7

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

Code

CSS

background-color: #15559e;

Tailwind (arbitrary value)

bg-[#15559e]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#15559e (#15559e) is rgb(21, 85, 158) in RGB.

No, #15559e 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 #15559e, or check how it holds up for accessibility.

Generate a palette → Check contrast