#1d2f78

Color #1d2f78

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 10.24 Nearest Tailwind class blue-900 #1c398e · ΔE 4.2

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

Conversions

HEX

#1d2f78

RGB

rgb(29, 47, 120)

HSL

hsl(228.1, 61.1%, 29.2%)

HSV / HSB

hsv(228.1, 75.8%, 47.1%)

CMYK

cmyk(75.8%, 60.8%, 0%, 52.9%)

LAB

lab(22.48, 20.39, -43.85)

LCH

lch(22.48, 48.36, 294.94)

OKLCH

oklch(34%, 0.1266, 268.23)

HWB

hwb(228.1, 11.4%, 52.9%)

Harmony colors

Complementary

#78661d

Analogous

#1d5d78

#1d2f78

#381d78

Triadic

#1d2f78

#781d2f

#2f781d

Split-complementary

#1d2f78

#78381d

#5d781d

Tetradic

#1d2f78

#661d78

#78661d

#2f781d

Square

#1d2f78

#781d5d

#78661d

#1d7838

Shades

Color #1d2f78 mixed toward black.

#182764

#131f50

#0e183c

#0a1028

#050814

Tints

Color #1d2f78 mixed toward white.

#2942a8

#3d5ad0

#6e83dc

#9eade8

#cfd6f3

Tones

Color #1d2f78 mixed toward gray.

#253470

#2c3869

#343d61

#3b415a

#434652

Accessibility

Aa White text on this color

12.14:1

Aa Black text on this color

1.73:1

White text reads better on this background (12.14:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#26266c · ΔE 3.9

Deuteranopia

#252369 · ΔE 4.8

Tritanopia

#1e615e · ΔE 30.7

Achromatopsia

#363636 · ΔE 23.5

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

Code

CSS

background-color: #1d2f78;

Tailwind (arbitrary value)

bg-[#1d2f78]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#1d2f78 (#1d2f78) is rgb(29, 47, 120) in RGB.

No, #1d2f78 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 #1d2f78, or check how it holds up for accessibility.

Generate a palette → Check contrast