#0057AD Color

#0057AD is rgb(0, 87, 173) in RGB, hsl(210, 100%, 34%) in HSL, and about cmyk(100%, 50%, 0%, 32%) in CMYK. It has no registered color name of its own — the closest is Iron Indigo (#184FA1), very hard to tell apart at ΔE 4.53. White text is the more readable choice on this background.

#0057AD

HEX#0057AD

RGBrgb(0, 87, 173)

HSLhsl(210, 100%, 34%)

HSVhsv(210, 100%, 68%)

CMYKcmyk(100%, 50%, 0%, 32%)

OKLCHoklch(46.5% 0.155 255.3)

LABlab(36.68% 5.07 -53.13)

LCHlch(36.68% 53.37 275.45)

What #0057AD Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #0057AD, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Iron Indigo#184FA1ΔE 4.53 Denim#1560BDΔE 5.1 Green-blue#1164B4ΔE 7.18 Medium Electric Blue#035096ΔE 9.57 Sapphire#0F52BAΔE 11.86 True Blue#0073CFΔE 11.87

Browse the full index of named colors A-Z or every blue in the library.

#0057AD Channel Values

How #0057AD breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 0 · G 87 · B 173	8-bit channels as sent to the display
HSL	H 210° · S 100% · L 34%	Easiest model for building lighter and darker variants
HSV	H 210° · S 100% · V 68%	Matches the picker in most design tools
CMYK	C 100% · M 50% · Y 0% · K 32%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	7.08:1 vs white · 2.97:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #0057AD background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text7.08:1AA normal AA large AAA normal

Fails AABlack text2.97:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #0057AD in the contrast checker.

Colors That Go With #0057AD

Pairings derived from color-wheel relationships. The complementary color sits opposite #0057AD; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #0057AD

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #0057AD.

How #0057AD Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#0057AD

Protanopia#4F4FAD

Protanomaly#3E53AD

Deuteranopia#4747AD

Deuteranomaly#374EAD

Tritanopia#006767

Tritanomaly#006189

Achromatopsia#585858

Test a full palette in the color blindness simulator.

Using #0057AD in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-0057ad: #0057AD;

CSS backgroundbackground-color: #0057AD;

Tailwind configcolors: { 'color-0057ad': '#0057AD' }

SwiftUIColor(red: 0.000, green: 0.341, blue: 0.678)

Android XML<color name="color_0057ad">#0057AD</color>

SVG fillfill="#0057AD"

More Blue Colors

#0057AD sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

00598a 00549e 006699 0048ba 0066cc 0047ab 0066ff 004285 0067a5 00416a 0069a8 0038a8 082567 172436 23108e 333366 436b95 5959de 7070ff 897fc7 a69de1 c4e7fd e5e7eb 000061

#0057AD Frequently Asked Questions

What color is #0057AD?

#0057AD is a dark blue — rgb(0, 87, 173) in RGB and hsl(210, 100%, 34%) in HSL. It carries no registered color name of its own; the closest named color is Iron Indigo (#184FA1), which is very hard to tell apart at a CIE76 distance of 4.53.

What is the RGB value of #0057AD?

#0057AD is rgb(0, 87, 173) — red 0, green 87, and blue 173 on the 0-255 scale.

What is the CMYK value of #0057AD?

#0057AD converts to approximately cmyk(100%, 50%, 0%, 32%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #0057AD be black or white?

White text is the more readable choice. #0057AD scores 7.08:1 against white and 2.97:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #0057AD as a CSS color keyword?

No. #0057AD is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is darkslateblue (#483D8B) at a CIE76 distance of 20.39, which is visibly different.

Open #0057AD in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.