#1d5178

Color #1d5178

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 19.7 Nearest Tailwind class sky-900 #024a70 · ΔE 2.9

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Conversions

HEX

#1d5178

RGB

rgb(29, 81, 120)

HSL

hsl(205.7, 61.1%, 29.2%)

HSV / HSB

hsv(205.7, 75.8%, 47.1%)

CMYK

cmyk(75.8%, 32.5%, 0%, 52.9%)

LAB

lab(32.92, -2.92, -27.13)

LCH

lch(32.92, 27.29, 263.86)

OKLCH

oklch(42%, 0.0849, 244.7)

HWB

hwb(205.7, 11.4%, 52.9%)

Harmony colors

Complementary

#78441d

Analogous

#1d7871

#1d5178

#1d2378

Triadic

#1d5178

#781d51

#51781d

Split-complementary

#1d5178

#781d23

#78711d

Tetradic

#1d5178

#441d78

#78441d

#51781d

Square

#1d5178

#711d78

#78441d

#23781d

Shades

Color #1d5178 mixed toward black.

#184364

#133650

#0e283c

#0a1b28

#050d14

Tints

Color #1d5178 mixed toward white.

#2972a8

#3d91d0

#6eaddc

#9ec8e8

#cfe4f3

Tones

Color #1d5178 mixed toward gray.

#255070

#2c4f69

#344e61

#3b4d5a

#434c52

Accessibility

Aa White text on this color

8.4:1

Aa Black text on this color

2.5:1

White text reads better on this background (8.4:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3a3b70 · ΔE 13.2

Deuteranopia

#37336e · ΔE 14.9

Tritanopia

#226968 · ΔE 19.8

Achromatopsia

#4d4d4d · ΔE 17

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

Code

CSS

background-color: #1d5178;

Tailwind (arbitrary value)

bg-[#1d5178]

Related colors

Steel Blue #4682b4

Charcoal #36454f

Alice Blue #f0f8ff

Light Sky Blue #87cefa

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#1d5178 (#1d5178) is rgb(29, 81, 120) in RGB.

No, #1d5178 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.

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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 #1d5178, or check how it holds up for accessibility.

Generate a palette → Check contrast