#2a638b

Color #2a638b

A moderately saturated dark blue.

Closest named color Steel Blue #4682b4 · ΔE 13.29 Nearest Tailwind class sky-800 #00598a · ΔE 4

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Conversions

HEX

#2a638b

RGB

rgb(42, 99, 139)

HSL

hsl(204.7, 53.6%, 35.5%)

HSV / HSB

hsv(204.7, 69.8%, 54.5%)

CMYK

cmyk(69.8%, 28.8%, 0%, 45.5%)

LAB

lab(40.05, -4.95, -27.55)

LCH

lch(40.05, 27.99, 259.81)

OKLCH

oklch(48.1%, 0.0877, 242.35)

HWB

hwb(204.7, 16.5%, 45.5%)

Harmony colors

Complementary

#8b522a

Analogous

#2a8b82

#2a638b

#2a338b

Triadic

#2a638b

#8b2a63

#638b2a

Split-complementary

#2a638b

#8b2a33

#8b822a

Tetradic

#2a638b

#522a8b

#8b522a

#638b2a

Square

#2a638b

#822a8b

#8b522a

#338b2a

Shades

Color #2a638b mixed toward black.

#235374

#1c425d

#153246

#0e212e

#071117

Tints

Color #2a638b mixed toward white.

#3781b5

#579ccc

#81b5d9

#abcde6

#d5e6f2

Tones

Color #2a638b mixed toward gray.

#326283

#3a607b

#425f73

#4a5d6b

#525c63

Accessibility

Aa White text on this color

6.45:1

Aa Black text on this color

3.26:1

White text reads better on this background (6.45:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#494a83 · ΔE 14.7

Deuteranopia

#464181 · ΔE 16.7

Tritanopia

#2f7c7a · ΔE 19.8

Achromatopsia

#5e5e5e · ΔE 17.3

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

Code

CSS

background-color: #2a638b;

Tailwind (arbitrary value)

bg-[#2a638b]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#2a638b (#2a638b) is rgb(42, 99, 139) in RGB.

No, #2a638b 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 #2a638b, or check how it holds up for accessibility.

Generate a palette → Check contrast