#283a67

Color #283a67

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 23.2 Nearest Tailwind class slate-700 #314158 · ΔE 6.6

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Conversions

HEX

#283a67

RGB

rgb(40, 58, 103)

HSL

hsl(222.9, 44.1%, 28%)

HSV / HSB

hsv(222.9, 61.2%, 40.4%)

CMYK

cmyk(61.2%, 43.7%, 0%, 59.6%)

LAB

lab(25.13, 8, -28.66)

LCH

lch(25.13, 29.76, 285.6)

OKLCH

oklch(35.7%, 0.0816, 265.99)

HWB

hwb(222.9, 15.7%, 59.6%)

Harmony colors

Complementary

#675528

Analogous

#285967

#283a67

#352867

Triadic

#283a67

#67283a

#3a6728

Split-complementary

#283a67

#673528

#596728

Tetradic

#283a67

#552867

#675528

#3a6728

Square

#283a67

#672859

#675528

#286735

Shades

Color #283a67 mixed toward black.

#213056

#1b2745

#141d33

#0d1322

#070a11

Tints

Color #283a67 mixed toward white.

#395393

#4f6dbb

#7b92cc

#a7b6dd

#d3dbee

Tones

Color #283a67 mixed toward gray.

#2d3c62

#323e5c

#384157

#3d4352

#42454d

Accessibility

Aa White text on this color

11.1:1

Aa Black text on this color

1.89:1

White text reads better on this background (11.1:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#31315e · ΔE 5.3

Deuteranopia

#302e5c · ΔE 6.1

Tritanopia

#295755 · ΔE 24.3

Achromatopsia

#3c3c3c · ΔE 18.2

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

Code

CSS

background-color: #283a67;

Tailwind (arbitrary value)

bg-[#283a67]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#283a67 (#283a67) is rgb(40, 58, 103) in RGB.

No, #283a67 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.

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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 #283a67, or check how it holds up for accessibility.

Generate a palette → Check contrast