#003B57 Color

#003B57 is rgb(0, 59, 87) in RGB, hsl(199, 100%, 17%) in HSL, and about cmyk(100%, 32%, 0%, 66%) in CMYK. It has no registered color name of its own — the closest is Prussian Blue (#003153), clearly related but distinguishable side by side at ΔE 6.84. White text is the more readable choice on this background.

#003B57

HEX#003B57

RGBrgb(0, 59, 87)

HSLhsl(199, 100%, 17%)

HSVhsv(199, 100%, 34%)

CMYKcmyk(100%, 32%, 0%, 66%)

OKLCHoklch(33.4% 0.073 237.1)

LABlab(22.70% -8.71 -22.11)

LCHlch(22.70% 23.77 248.49)

What #003B57 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 #003B57, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Prussian Blue#003153ΔE 6.84 Indigo Dye#00416AΔE 8.69 Deep Teal#003B46ΔE 11.64 Police Blue#374F6BΔE 11.73 Metallic Blue#32527BΔE 14.1 Midnight Green(eagle Green)#004953ΔE 14.32

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

#003B57 Channel Values

How #003B57 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 59 · B 87	8-bit channels as sent to the display
HSL	H 199° · S 100% · L 17%	Easiest model for building lighter and darker variants
HSV	H 199° · S 100% · V 34%	Matches the picker in most design tools
CMYK	C 100% · M 32% · Y 0% · K 66%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	11.91:1 vs white · 1.76:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #003B57 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 text11.91:1AA normal AA large AAA normal

Fails AABlack text1.76:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #003B57 in the contrast checker.

Colors That Go With #003B57

Pairings derived from color-wheel relationships. The complementary color sits opposite #003B57; 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 #003B57

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 #003B57.

How #003B57 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#003B57

Protanopia#363657

Protanomaly#293857

Deuteranopia#303058

Deuteranomaly#243557

Tritanopia#003F3F

Tritanomaly#003E4A

Achromatopsia#373737

Test a full palette in the color blindness simulator.

Using #003B57 in Code

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

CSS custom property--color-003b57: #003B57;

CSS backgroundbackground-color: #003B57;

Tailwind configcolors: { 'color-003b57': '#003B57' }

SwiftUIColor(red: 0.000, green: 0.231, blue: 0.341)

Android XML<color name="color_003b57">#003B57</color>

SVG fillfill="#003B57"

More Teal Colors

#003B57 sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424 f5ffff 002a38 f0ffff 002d2e eefbfb 003333 ecfeff 003542 ecf7f9 003838 ebffff 006466 009999 00ebeb 0d1616 192929 24fbff 36747d 50bfe6 73a9c2 8dd9cc aec6cf ccffff

#003B57 Frequently Asked Questions

What color is #003B57?

#003B57 is a darkest teal — rgb(0, 59, 87) in RGB and hsl(199, 100%, 17%) in HSL. It carries no registered color name of its own; the closest named color is Prussian Blue (#003153), which is clearly related but distinguishable side by side at a CIE76 distance of 6.84.

What is the RGB value of #003B57?

#003B57 is rgb(0, 59, 87) — red 0, green 59, and blue 87 on the 0-255 scale.

What is the CMYK value of #003B57?

#003B57 converts to approximately cmyk(100%, 32%, 0%, 66%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #003B57 be black or white?

White text is the more readable choice. #003B57 scores 11.91:1 against white and 1.76:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #003B57 as a CSS color keyword?

No. #003B57 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 darkslategray (#2F4F4F) at a CIE76 distance of 20.35, which is visibly different.

Open #003B57 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 teal in the color library, the guide to shades of teal, or the full color library.