#153a77

Color #153a77

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.26 Nearest Tailwind class blue-900 #1c398e · ΔE 4.2

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

Conversions

HEX

#153a77

RGB

rgb(21, 58, 119)

HSL

hsl(217.3, 70%, 27.5%)

HSV / HSB

hsv(217.3, 82.4%, 46.7%)

CMYK

cmyk(82.4%, 51.3%, 0%, 53.3%)

LAB

lab(25.31, 11.15, -38.64)

LCH

lch(25.31, 40.22, 286.1)

OKLCH

oklch(36%, 0.1128, 259.99)

HWB

hwb(217.3, 8.2%, 53.3%)

Harmony colors

Complementary

#775215

Analogous

#156b77

#153a77

#211577

Triadic

#153a77

#77153a

#3a7715

Split-complementary

#153a77

#772115

#6b7715

Tetradic

#153a77

#521577

#775215

#3a7715

Square

#153a77

#77156b

#775215

#157721

Shades

Color #153a77 mixed toward black.

#123063

#0e274f

#0b1d3c

#071328

#040a14

Tints

Color #153a77 mixed toward white.

#1e54ac

#2d6fda

#6293e3

#96b7ed

#cbdbf6

Tones

Color #153a77 mixed toward gray.

#1d3c6f

#253e67

#2e405f

#364256

#3e444e

Accessibility

Aa White text on this color

11.03:1

Aa Black text on this color

1.9:1

White text reads better on this background (11.03:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#292a6c · ΔE 7.6

Deuteranopia

#272469 · ΔE 9.2

Tritanopia

#186260 · ΔE 27.6

Achromatopsia

#3c3c3c · ΔE 21.4

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

Code

CSS

background-color: #153a77;

Tailwind (arbitrary value)

bg-[#153a77]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Royal Blue #4169e1

Dodger Blue #1e90ff

Frequently asked questions

#153a77 (#153a77) is rgb(21, 58, 119) in RGB.

No, #153a77 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 #153a77, or check how it holds up for accessibility.

Generate a palette → Check contrast