#0a387b

Color #0a387b

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.16 Nearest Tailwind class blue-900 #1c398e · ΔE 3.7

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

Conversions

HEX

#0a387b

RGB

rgb(10, 56, 123)

HSL

hsl(215.6, 85%, 26.1%)

HSV / HSB

hsv(215.6, 91.9%, 48.2%)

CMYK

cmyk(91.9%, 54.5%, 0%, 51.8%)

LAB

lab(24.71, 13.28, -42.16)

LCH

lch(24.71, 44.2, 287.48)

OKLCH

oklch(35.5%, 0.124, 258.98)

HWB

hwb(215.6, 3.9%, 51.8%)

Harmony colors

Complementary

#7b4d0a

Analogous

#0a717b

#0a387b

#150a7b

Triadic

#0a387b

#7b0a38

#387b0a

Split-complementary

#0a387b

#7b150a

#717b0a

Tetradic

#0a387b

#4d0a7b

#7b4d0a

#387b0a

Square

#0a387b

#7b0a71

#7b4d0a

#0a7b15

Shades

Color #0a387b mixed toward black.

#082f67

#072552

#051c3e

#031329

#020915

Tints

Color #0a387b mixed toward white.

#0f52b5

#176dec

#5192f1

#8bb6f6

#c5dbfa

Tones

Color #0a387b mixed toward gray.

#133a72

#1d3c68

#263d5f

#303f55

#39414c

Accessibility

Aa White text on this color

11.26:1

Aa Black text on this color

1.86:1

White text reads better on this background (11.26:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#25266f · ΔE 8

Deuteranopia

#231f6c · ΔE 9.9

Tritanopia

#0f6562 · ΔE 29.6

Achromatopsia

#3b3b3b · ΔE 22.4

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

Code

CSS

background-color: #0a387b;

Tailwind (arbitrary value)

bg-[#0a387b]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#0a387b (#0a387b) is rgb(10, 56, 123) in RGB.

No, #0a387b 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 #0a387b, or check how it holds up for accessibility.

Generate a palette → Check contrast