#153da8

Color #153da8

A vivid, highly saturated dark blue.

Closest named color Slate Blue #6a5acd · ΔE 16.94 Nearest Tailwind class blue-800 #193cb8 · ΔE 2.5

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Conversions

HEX

#153da8

RGB

rgb(21, 61, 168)

HSL

hsl(223.7, 77.8%, 37.1%)

HSV / HSB

hsv(223.7, 87.5%, 65.9%)

CMYK

cmyk(87.5%, 63.7%, 0%, 34.1%)

LAB

lab(30.21, 29.07, -60.86)

LCH

lch(30.21, 67.45, 295.53)

OKLCH

oklch(40.9%, 0.1772, 264.14)

HWB

hwb(223.7, 8.2%, 34.1%)

Harmony colors

Complementary

#a88015

Analogous

#1587a8

#153da8

#3715a8

Triadic

#153da8

#a8153d

#3da815

Split-complementary

#153da8

#a83715

#87a815

Tetradic

#153da8

#8015a8

#a88015

#3da815

Square

#153da8

#a81587

#a88015

#15a837

Shades

Color #153da8 mixed toward black.

#12338c

#0e2970

#0b1e54

#071438

#040a1c

Tints

Color #153da8 mixed toward white.

#1b4ed8

#416ee7

#7092ed

#a0b7f3

#cfdbf9

Tones

Color #153da8 mixed toward gray.

#21439c

#2e4890

#3a4e83

#465377

#52596b

Accessibility

Aa White text on this color

9.27:1

Aa Black text on this color

2.26:1

White text reads better on this background (9.27:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2b2c97 · ΔE 6

Deuteranopia

#292692 · ΔE 7.6

Tritanopia

#198783 · ΔE 38.1

Achromatopsia

#474747 · ΔE 26.8

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

Code

CSS

background-color: #153da8;

Tailwind (arbitrary value)

bg-[#153da8]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#153da8 (#153da8) is rgb(21, 61, 168) in RGB.

No, #153da8 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 #153da8, or check how it holds up for accessibility.

Generate a palette → Check contrast