#155dcf

Color #155dcf

A vivid, highly saturated medium blue.

Closest named color Royal Blue #4169e1 · ΔE 6.67 Nearest Tailwind class blue-600 #155dfc · ΔE 6

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Conversions

HEX

#155dcf

RGB

rgb(21, 93, 207)

HSL

hsl(216.8, 81.6%, 44.7%)

HSV / HSB

hsv(216.8, 89.9%, 81.2%)

CMYK

cmyk(89.9%, 55.1%, 0%, 18.8%)

LAB

lab(41.99, 23.12, -64.55)

LCH

lch(41.99, 68.57, 289.71)

OKLCH

oklch(50.8%, 0.1894, 260.09)

HWB

hwb(216.8, 8.2%, 18.8%)

Harmony colors

Complementary

#cf8715

Analogous

#15bacf

#155dcf

#2a15cf

Triadic

#155dcf

#cf155d

#5dcf15

Split-complementary

#155dcf

#cf2a15

#bacf15

Tetradic

#155dcf

#8715cf

#cf8715

#5dcf15

Square

#155dcf

#cf15ba

#cf8715

#15cf2a

Shades

Color #155dcf mixed toward black.

#114dac

#0e3e8a

#0a2e67

#071f45

#030f22

Tints

Color #155dcf mixed toward white.

#2a74e9

#5490ee

#7fabf2

#aac7f6

#d4e3fb

Tones

Color #155dcf mixed toward gray.

#2460bf

#3464b0

#4367a0

#536b91

#626e81

Accessibility

Aa White text on this color

6:1

Aa Black text on this color

3.5:1

White text reads better on this background (6:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4041bb · ΔE 10.8

Deuteranopia

#3c37b6 · ΔE 13.3

Tritanopia

#1daaa6 · ΔE 39.5

Achromatopsia

#636363 · ΔE 27

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

Code

CSS

background-color: #155dcf;

Tailwind (arbitrary value)

bg-[#155dcf]

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

#155dcf (#155dcf) is rgb(21, 93, 207) in RGB.

No, #155dcf 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #155dcf, or check how it holds up for accessibility.

Generate a palette → Check contrast