#063b8c

Color #063b8c

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 11.33 Nearest Tailwind class blue-900 #1c398e · ΔE 2.2

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

Conversions

HEX

#063b8c

RGB

rgb(6, 59, 140)

HSL

hsl(216.3, 91.8%, 28.6%)

HSV / HSB

hsv(216.3, 95.7%, 54.9%)

CMYK

cmyk(95.7%, 57.9%, 0%, 45.1%)

LAB

lab(26.9, 18.18, -49.22)

LCH

lch(26.9, 52.47, 290.27)

OKLCH

oklch(37.6%, 0.1446, 259.96)

HWB

hwb(216.3, 2.4%, 45.1%)

Harmony colors

Complementary

#8c5706

Analogous

#067e8c

#063b8c

#14068c

Triadic

#063b8c

#8c063b

#3b8c06

Split-complementary

#063b8c

#8c1406

#7e8c06

Tetradic

#063b8c

#57068c

#8c5706

#3b8c06

Square

#063b8c

#8c067e

#8c5706

#068c14

Shades

Color #063b8c mixed toward black.

#053175

#04275d

#031d46

#02142f

#010a17

Tints

Color #063b8c mixed toward white.

#0853c6

#166ef5

#5092f8

#8bb7fa

#c5dbfd

Tones

Color #063b8c mixed toward gray.

#113d81

#1c4076

#27426a

#33445f

#3e4754

Accessibility

Aa White text on this color

10.44:1

Aa Black text on this color

2.01:1

White text reads better on this background (10.44:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#27277e · ΔE 8.1

Deuteranopia

#24207b · ΔE 9.8

Tritanopia

#0d726f · ΔE 32.6

Achromatopsia

#404040 · ΔE 24.2

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

Code

CSS

background-color: #063b8c;

Tailwind (arbitrary value)

bg-[#063b8c]

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

#063b8c (#063b8c) is rgb(6, 59, 140) in RGB.

No, #063b8c 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 #063b8c, or check how it holds up for accessibility.

Generate a palette → Check contrast