#63A3AB Color

#63A3AB is rgb(99, 163, 171) in RGB, hsl(187, 30%, 53%) in HSL, and about cmyk(42%, 5%, 0%, 33%) in CMYK. It has no registered color name of its own — the closest is Cadet Blue (#5F9EA0), very hard to tell apart at ΔE 3.88. Black text is the more readable choice on this background.

#63A3AB

HEX#63A3AB

RGBrgb(99, 163, 171)

HSLhsl(187, 30%, 53%)

HSVhsv(187, 42%, 67%)

CMYKcmyk(42%, 5%, 0%, 33%)

OKLCHoklch(67.5% 0.067 205.9)

LABlab(62.93% -19.81 -10.99)

LCHlch(62.93% 22.65 209.02)

What #63A3AB 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 #63A3AB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Cadet Blue#5F9EA0ΔE 3.88 Blue Lagoon#4C9C9CΔE 7.39 Moonstone Blue#73A9C2ΔE 10.53 Steel Teal#5F8A8FΔE 10.59 Green Sheen#6EAEA1ΔE 12.06 Pewter Blue#8BA8B7ΔE 12.7

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

#63A3AB Channel Values

How #63A3AB 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 99 · G 163 · B 171	8-bit channels as sent to the display
HSL	H 187° · S 30% · L 53%	Easiest model for building lighter and darker variants
HSV	H 187° · S 42% · V 67%	Matches the picker in most design tools
CMYK	C 42% · M 5% · Y 0% · K 33%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	2.85:1 vs white · 7.36:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #63A3AB 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.

Fails AAWhite text2.85:1AA normal AA large AAA normal

TextBlack text7.36:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #63A3AB in the contrast checker.

Colors That Go With #63A3AB

Pairings derived from color-wheel relationships. The complementary color sits opposite #63A3AB; 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 #63A3AB

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 #63A3AB.

How #63A3AB 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#63A3AB

Protanopia#9A9AAB

Protanomaly#889EAB

Deuteranopia#9292AC

Deuteranomaly#8299AC

Tritanopia#61A4A4

Tritanomaly#62A4A7

Achromatopsia#999999

Test a full palette in the color blindness simulator.

Using #63A3AB in Code

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

CSS custom property--color-63a3ab: #63A3AB;

CSS backgroundbackground-color: #63A3AB;

Tailwind configcolors: { 'color-63a3ab': '#63A3AB' }

SwiftUIColor(red: 0.388, green: 0.639, blue: 0.671)

Android XML<color name="color_63a3ab">#63A3AB</color>

SVG fillfill="#63A3AB"

More Teal Colors

#63A3AB 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

#63A3AB Frequently Asked Questions

What color is #63A3AB?

#63A3AB is a mid-tone teal — rgb(99, 163, 171) in RGB and hsl(187, 30%, 53%) in HSL. It carries no registered color name of its own; the closest named color is Cadet Blue (#5F9EA0), which is very hard to tell apart at a CIE76 distance of 3.88.

What is the RGB value of #63A3AB?

#63A3AB is rgb(99, 163, 171) — red 99, green 163, and blue 171 on the 0-255 scale.

What is the CMYK value of #63A3AB?

#63A3AB converts to approximately cmyk(42%, 5%, 0%, 33%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #63A3AB be black or white?

Black text is the more readable choice. #63A3AB scores 2.85:1 against white and 7.36:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #63A3AB as a CSS color keyword?

No. #63A3AB 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 cadetblue (#5F9EA0) at a CIE76 distance of 3.88, which is very hard to tell apart.

Open #63A3AB in a Tool

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