Skip to content

#63C5B0 Color

#63C5B0 is rgb(99, 197, 176) in RGB, hsl(167, 46%, 58%) in HSL, and about cmyk(50%, 0%, 11%, 23%) in CMYK. It has no registered color name of its own — the closest is Medium Aquamarine (#66CDAA), clearly related but distinguishable side by side at ΔE 7.91. Black text is the more readable choice on this background.

#63C5B0
HEX#63C5B0
RGBrgb(99, 197, 176)
HSLhsl(167, 46%, 58%)
HSVhsv(167, 50%, 77%)
CMYKcmyk(50%, 0%, 11%, 23%)
OKLCHoklch(75.8% 0.098 177.7)
LABlab(73.18% -34.10 1.23)
LCHlch(73.18% 34.12 177.94)

What #63C5B0 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 #63C5B0, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Aquamarine#66CDAAΔE 7.91Keppel#3AB09EΔE 8.97Pearl Aqua#88D8C0ΔE 9.05Verdigris#43B3AEΔE 10.82Middle Blue Green#8DD9CCΔE 11.42Medium Turquoise#48D1CCΔE 11.77

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

#63C5B0 Channel Values

How #63C5B0 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 99 · G 197 · B 1768-bit channels as sent to the display
HSLH 167° · S 46% · L 58%Easiest model for building lighter and darker variants
HSVH 167° · S 50% · V 77%Matches the picker in most design tools
CMYKC 50% · M 0% · Y 11% · K 23%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.07:1 vs white · 10.14:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #63C5B0 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 text2.07:1AA normal AA large AAA normal
TextBlack text10.14:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #63C5B0 in the contrast checker.

Colors That Go With #63C5B0

Pairings derived from color-wheel relationships. The complementary color sits opposite #63C5B0; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#63C5B0
Complementary
#C56378
Analogous
#63C57F
Analogous
#63A9C5
Triadic
#B063C5
Triadic
#C5B063
Split comp.
#C563A9
Split comp.
#C57F63

Tints & Shades of #63C5B0

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

#79CDBB
#8CD4C5
#A2DDD0
#B8E5DB
#CFEDE6
#E1F4F0

Shades

#45BAA1
#3BA08A
#308271
#256557
#1A473D
#112D27

Want a full 50-950 ramp with semantic roles? Generate design tokens from #63C5B0.

How #63C5B0 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#63C5B0
Protanopia#B9B9B0
Protanomaly#9EBEB0
Deuteranopia#ACACB2
Deuteranomaly#95B7B1
Tritanopia#69C3C3
Tritanomaly#67C4BB
Achromatopsia#B4B4B4

Test a full palette in the color blindness simulator.

Using #63C5B0 in Code

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

CSS custom property--color-63c5b0: #63C5B0;
CSS backgroundbackground-color: #63C5B0;
Tailwind configcolors: { 'color-63c5b0': '#63C5B0' }
SwiftUIColor(red: 0.388, green: 0.773, blue: 0.690)
Android XML<color name="color_63c5b0">#63C5B0</color>
SVG fillfill="#63C5B0"

More Green Colors

#63C5B0 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#63C5B0 Frequently Asked Questions

What color is #63C5B0?

#63C5B0 is a mid-tone green — rgb(99, 197, 176) in RGB and hsl(167, 46%, 58%) in HSL. It carries no registered color name of its own; the closest named color is Medium Aquamarine (#66CDAA), which is clearly related but distinguishable side by side at a CIE76 distance of 7.91.

What is the RGB value of #63C5B0?

#63C5B0 is rgb(99, 197, 176) — red 99, green 197, and blue 176 on the 0-255 scale.

What is the CMYK value of #63C5B0?

#63C5B0 converts to approximately cmyk(50%, 0%, 11%, 23%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #63C5B0 be black or white?

Black text is the more readable choice. #63C5B0 scores 2.07:1 against white and 10.14:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #63C5B0 as a CSS color keyword?

No. #63C5B0 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 mediumaquamarine (#66CDAA) at a CIE76 distance of 7.91, which is clearly related but distinguishable side by side.

Open #63C5B0 in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

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