#121e31

Color #121e31

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 18.12 Nearest Tailwind class gray-900 #101828 · ΔE 2.4

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Conversions

HEX

#121e31

RGB

rgb(18, 30, 49)

HSL

hsl(216.8, 46.3%, 13.1%)

HSV / HSB

hsv(216.8, 63.3%, 19.2%)

CMYK

cmyk(63.3%, 38.8%, 0%, 80.8%)

LAB

lab(11.13, 1.66, -14.2)

LCH

lch(11.13, 14.3, 276.67)

OKLCH

oklch(23.4%, 0.0407, 259.24)

HWB

hwb(216.8, 7.1%, 80.8%)

Harmony colors

Complementary

#312512

Analogous

#122d31

#121e31

#151231

Triadic

#121e31

#31121e

#1e3112

Split-complementary

#121e31

#311512

#2d3112

Tetradic

#121e31

#251231

#312512

#1e3112

Square

#121e31

#31122d

#312512

#123115

Shades

Color #121e31 mixed toward black.

#0f1929

#0c1421

#090f18

#060a10

#030508

Tints

Color #121e31 mixed toward white.

#263f67

#3a609d

#5d85c4

#93add7

#c9d6eb

Tones

Color #121e31 mixed toward gray.

#151e2e

#171f2c

#1a2029

#1c2027

#1f2124

Accessibility

Aa White text on this color

16.72:1

Aa Black text on this color

1.26:1

White text reads better on this background (16.72:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#18182d · ΔE 6.2

Deuteranopia

#17162c · ΔE 7

Tritanopia

#132a29 · ΔE 15.3

Achromatopsia

#1e1e1e · ΔE 10.9

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

Code

CSS

background-color: #121e31;

Tailwind (arbitrary value)

bg-[#121e31]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#121e31 (#121e31) is rgb(18, 30, 49) in RGB.

No, #121e31 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 #121e31, or check how it holds up for accessibility.

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