#233f6a

Color #233f6a

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 21.85 Nearest Tailwind class slate-700 #314158 · ΔE 5.7

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Conversions

HEX

#233f6a

RGB

rgb(35, 63, 106)

HSL

hsl(216.3, 50.4%, 27.6%)

HSV / HSB

hsv(216.3, 67%, 41.6%)

CMYK

cmyk(67%, 40.6%, 0%, 58.4%)

LAB

lab(26.6, 4.62, -28.27)

LCH

lch(26.6, 28.65, 279.28)

OKLCH

oklch(36.9%, 0.0819, 258.73)

HWB

hwb(216.3, 13.7%, 58.4%)

Harmony colors

Complementary

#6a4e23

Analogous

#23626a

#233f6a

#2a236a

Triadic

#233f6a

#6a233f

#3f6a23

Split-complementary

#233f6a

#6a2a23

#626a23

Tetradic

#233f6a

#4e236a

#6a4e23

#3f6a23

Square

#233f6a

#6a2362

#6a4e23

#236a2a

Shades

Color #233f6a mixed toward black.

#1d3458

#172a47

#111f35

#0c1523

#060a12

Tints

Color #233f6a mixed toward white.

#325a98

#4677c2

#7499d1

#a2bbe0

#d1ddf0

Tones

Color #233f6a mixed toward gray.

#294064

#2f415e

#354358

#3b4452

#40454c

Accessibility

Aa White text on this color

10.55:1

Aa Black text on this color

1.99:1

White text reads better on this background (10.55:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#313262 · ΔE 7.5

Deuteranopia

#302d60 · ΔE 9

Tritanopia

#255a59 · ΔE 22.7

Achromatopsia

#3f3f3f · ΔE 17.6

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

Code

CSS

background-color: #233f6a;

Tailwind (arbitrary value)

bg-[#233f6a]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#233f6a (#233f6a) is rgb(35, 63, 106) in RGB.

No, #233f6a 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 #233f6a, or check how it holds up for accessibility.

Generate a palette → Check contrast