#311ea1

Color #311ea1

A moderately saturated dark blue.

Closest named color Dark Blue #00008b · ΔE 10.11 Nearest Tailwind class indigo-800 #372aac · ΔE 3

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Conversions

HEX

#311ea1

RGB

rgb(49, 30, 161)

HSL

hsl(248.7, 68.6%, 37.5%)

HSV / HSB

hsv(248.7, 81.4%, 63.1%)

CMYK

cmyk(69.6%, 81.4%, 0%, 36.9%)

LAB

lab(24.17, 47.43, -66.53)

LCH

lch(24.17, 81.71, 305.49)

OKLCH

oklch(36.8%, 0.1939, 277.53)

HWB

hwb(248.7, 11.8%, 36.9%)

Harmony colors

Complementary

#8ea11e

Analogous

#1e4da1

#311ea1

#731ea1

Triadic

#311ea1

#a1311e

#1ea131

Split-complementary

#311ea1

#a1731e

#4da11e

Tetradic

#311ea1

#a11e8e

#8ea11e

#1ea131

Square

#311ea1

#a11e4d

#8ea11e

#1ea173

Shades

Color #311ea1 mixed toward black.

#291986

#21146b

#190f51

#100a36

#08051b

Tints

Color #311ea1 mixed toward white.

#3f26ce

#614cde

#8879e6

#b0a5ee

#d7d2f7

Tones

Color #311ea1 mixed toward gray.

#392996

#41348b

#483f80

#504a75

#58556b

Accessibility

Aa White text on this color

11.47:1

Aa Black text on this color

1.83:1

White text reads better on this background (11.47:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2a8f · ΔE 4.2

Deuteranopia

#2b2c8a · ΔE 5.2

Tritanopia

#307e7a · ΔE 39.6

Achromatopsia

#393939 · ΔE 28.8

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

Code

CSS

background-color: #311ea1;

Tailwind (arbitrary value)

bg-[#311ea1]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#311ea1 (#311ea1) is rgb(49, 30, 161) in RGB.

No, #311ea1 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 #311ea1, or check how it holds up for accessibility.

Generate a palette → Check contrast