#2a1f73

Color #2a1f73

A moderately saturated dark blue.

Closest named color Midnight Blue #191970 · ΔE 4.26 Nearest Tailwind class indigo-900 #312c85 · ΔE 4.1

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

Conversions

HEX

#2a1f73

RGB

rgb(42, 31, 115)

HSL

hsl(247.9, 57.5%, 28.6%)

HSV / HSB

hsv(247.9, 73%, 45.1%)

CMYK

cmyk(63.5%, 73%, 0%, 54.9%)

LAB

lab(18.84, 31.22, -46.56)

LCH

lch(18.84, 56.06, 303.84)

OKLCH

oklch(31.4%, 0.1367, 281.01)

HWB

hwb(247.9, 12.2%, 54.9%)

Harmony colors

Complementary

#68731f

Analogous

#1f3e73

#2a1f73

#541f73

Triadic

#2a1f73

#732a1f

#1f732a

Split-complementary

#2a1f73

#73541f

#3e731f

Tetradic

#2a1f73

#731f68

#68731f

#1f732a

Square

#2a1f73

#731f3e

#68731f

#1f7354

Shades

Color #2a1f73 mixed toward black.

#231a60

#1c154d

#150f39

#0e0a26

#070513

Tints

Color #2a1f73 mixed toward white.

#3c2ca3

#5240cb

#7d70d8

#a99fe5

#d4cff2

Tones

Color #2a1f73 mixed toward gray.

#2f266c

#342d65

#39345e

#3f3b57

#444250

Accessibility

Aa White text on this color

13.62:1

Aa Black text on this color

1.54:1

White text reads better on this background (13.62:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#262666 · ΔE 4

Deuteranopia

#262763 · ΔE 4.8

Tritanopia

#2a5a58 · ΔE 30.6

Achromatopsia

#2e2e2e · ΔE 25.1

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

Code

CSS

background-color: #2a1f73;

Tailwind (arbitrary value)

bg-[#2a1f73]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#2a1f73 (#2a1f73) is rgb(42, 31, 115) in RGB.

No, #2a1f73 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.

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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 #2a1f73, or check how it holds up for accessibility.

Generate a palette → Check contrast