#175daa

Color #175daa

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 20.16 Nearest Tailwind class sky-800 #00598a · ΔE 5.5

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

Conversions

HEX

#175daa

RGB

rgb(23, 93, 170)

HSL

hsl(211.4, 76.2%, 37.8%)

HSV / HSB

hsv(211.4, 86.5%, 66.7%)

CMYK

cmyk(86.5%, 45.3%, 0%, 33.3%)

LAB

lab(39.43, 8.52, -47.09)

LCH

lch(39.43, 47.85, 280.26)

OKLCH

oklch(48%, 0.1402, 254.62)

HWB

hwb(211.4, 9%, 33.3%)

Harmony colors

Complementary

#aa6417

Analogous

#17a6aa

#175daa

#1a17aa

Triadic

#175daa

#aa175d

#5daa17

Split-complementary

#175daa

#aa1a17

#a6aa17

Tetradic

#175daa

#6417aa

#aa6417

#5daa17

Square

#175daa

#aa17a6

#aa6417

#17aa1a

Shades

Color #175daa mixed toward black.

#134d8e

#0f3e71

#0b2e55

#081f39

#040f1c

Tints

Color #175daa mixed toward white.

#1d76d8

#4591e6

#73adec

#a2c8f2

#d0e4f9

Tones

Color #175daa mixed toward gray.

#235e9e

#2f5e91

#3c5f85

#485f79

#54606d

Accessibility

Aa White text on this color

6.6:1

Aa Black text on this color

3.18:1

White text reads better on this background (6.6:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#41419c · ΔE 12.9

Deuteranopia

#3d3798 · ΔE 15.4

Tritanopia

#1f8f8c · ΔE 31

Achromatopsia

#5d5d5d · ΔE 23.1

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

Code

CSS

background-color: #175daa;

Tailwind (arbitrary value)

bg-[#175daa]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Light Steel Blue #b0c4de

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#175daa (#175daa) is rgb(23, 93, 170) in RGB.

No, #175daa 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.

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 #175daa, or check how it holds up for accessibility.

Generate a palette → Check contrast