#397bb1

Color #397bb1

A moderately saturated medium blue.

Closest named color Steel Blue #4682b4 · ΔE 3.81 Nearest Tailwind class sky-600 #0084d1 · ΔE 4.7

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Conversions

HEX

#397bb1

RGB

rgb(57, 123, 177)

HSL

hsl(207, 51.3%, 45.9%)

HSV / HSB

hsv(207, 67.8%, 69.4%)

CMYK

cmyk(67.8%, 30.5%, 0%, 30.6%)

LAB

lab(49.75, -3.33, -34.75)

LCH

lch(49.75, 34.91, 264.53)

OKLCH

oklch(56.5%, 0.1075, 246.01)

HWB

hwb(207, 22.4%, 30.6%)

Harmony colors

Complementary

#b16f39

Analogous

#39b1ab

#397bb1

#393fb1

Triadic

#397bb1

#b1397b

#7bb139

Split-complementary

#397bb1

#b1393f

#b1ab39

Tetradic

#397bb1

#6f39b1

#b16f39

#7bb139

Square

#397bb1

#ab39b1

#b16f39

#3fb139

Shades

Color #397bb1 mixed toward black.

#306794

#265276

#1d3e59

#13293b

#0a151e

Tints

Color #397bb1 mixed toward white.

#5192c7

#74a8d2

#97bedd

#b9d3e9

#dce9f4

Tones

Color #397bb1 mixed toward gray.

#437aa7

#4d799d

#577893

#617789

#6b767f

Accessibility

Aa White text on this color

4.52:1

Aa Black text on this color

4.64:1

Black text reads better on this background (4.64:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5d5da6 · ΔE 16

Deuteranopia

#5954a3 · ΔE 18.2

Tritanopia

#3e9d9a · ΔE 23.5

Achromatopsia

#767676 · ΔE 19.6

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

Code

CSS

background-color: #397bb1;

Tailwind (arbitrary value)

bg-[#397bb1]

Related colors

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Charcoal #36454f

Light Slate Gray #778899

Slate Gray #708090

Frequently asked questions

#397bb1 (#397bb1) is rgb(57, 123, 177) in RGB.

No, #397bb1 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 #397bb1, or check how it holds up for accessibility.

Generate a palette → Check contrast