#1b3f50

Color #1b3f50

A moderately saturated dark cyan.

Closest named color Charcoal #36454f · ΔE 8.05 Nearest Tailwind class cyan-950 #053345 · ΔE 4

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Conversions

HEX

#1b3f50

RGB

rgb(27, 63, 80)

HSL

hsl(199.2, 49.5%, 21%)

HSV / HSB

hsv(199.2, 66.3%, 31.4%)

CMYK

cmyk(66.3%, 21.2%, 0%, 68.6%)

LAB

lab(24.85, -6.97, -14.16)

LCH

lch(24.85, 15.78, 243.79)

OKLCH

oklch(34.9%, 0.0507, 231.16)

HWB

hwb(199.2, 10.6%, 68.6%)

Harmony colors

Complementary

#502c1b

Analogous

#1b5047

#1b3f50

#1b2550

Triadic

#1b3f50

#501b3f

#3f501b

Split-complementary

#1b3f50

#501b25

#50471b

Tetradic

#1b3f50

#2c1b50

#502c1b

#3f501b

Square

#1b3f50

#471b50

#502c1b

#25501b

Shades

Color #1b3f50 mixed toward black.

#173543

#122a35

#0e2028

#09151b

#050b0d

Tints

Color #1b3f50 mixed toward white.

#2c6782

#3d8eb4

#68accc

#9bc8dd

#cde3ee

Tones

Color #1b3f50 mixed toward gray.

#1f3e4c

#243c47

#283a43

#2d393e

#31373a

Accessibility

Aa White text on this color

11.21:1

Aa Black text on this color

1.87:1

White text reads better on this background (11.21:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2e2f4c · ΔE 16.3

Deuteranopia

#2c294b · ΔE 18.1

Tritanopia

#1e4949 · ΔE 10.7

Achromatopsia

#3b3b3b · ΔE 12.6

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

Code

CSS

background-color: #1b3f50;

Tailwind (arbitrary value)

bg-[#1b3f50]

Related colors

Sky Blue #87ceeb

Light Sky Blue #87cefa

Deep Sky Blue #00bfff

Light Blue #add8e6

Charcoal #36454f

Steel Blue #4682b4

Frequently asked questions

#1b3f50 (#1b3f50) is rgb(27, 63, 80) in RGB.

No, #1b3f50 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 #1b3f50, or check how it holds up for accessibility.

Generate a palette → Check contrast