#253f6e

Color #253f6e

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 23.11 Nearest Tailwind class blue-900 #1c398e · ΔE 5.8

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#253f6e

RGB

rgb(37, 63, 110)

HSL

hsl(218.6, 49.7%, 28.8%)

HSV / HSB

hsv(218.6, 66.4%, 43.1%)

CMYK

cmyk(66.4%, 42.7%, 0%, 56.9%)

LAB

lab(26.94, 6.57, -30.27)

LCH

lch(26.94, 30.97, 282.25)

OKLCH

oklch(37.2%, 0.0872, 261.29)

HWB

hwb(218.6, 14.5%, 56.9%)

Harmony colors

Complementary

#6e5425

Analogous

#25636e

#253f6e

#2f256e

Triadic

#253f6e

#6e253f

#3f6e25

Split-complementary

#253f6e

#6e2f25

#636e25

Tetradic

#253f6e

#54256e

#6e5425

#3f6e25

Square

#253f6e

#6e2563

#6e5425

#256e2f

Shades

Color #253f6e mixed toward black.

#1f345c

#192a49

#121f37

#0c1525

#060a12

Tints

Color #253f6e mixed toward white.

#34599b

#4a75c2

#7797d1

#a4bae1

#d2dcf0

Tones

Color #253f6e mixed toward gray.

#2b4168

#314262

#37445c

#3d4656

#434850

Accessibility

Aa White text on this color

10.42:1

Aa Black text on this color

2.01:1

White text reads better on this background (10.42:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#323265 · ΔE 7.1

Deuteranopia

#312e63 · ΔE 8.2

Tritanopia

#275d5b · ΔE 24.2

Achromatopsia

#404040 · ΔE 18.5

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

Code

CSS

background-color: #253f6e;

Tailwind (arbitrary value)

bg-[#253f6e]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#253f6e (#253f6e) is rgb(37, 63, 110) in RGB.

No, #253f6e 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #253f6e, or check how it holds up for accessibility.

Generate a palette → Check contrast