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#647D87 Color

#647D87 is rgb(100, 125, 135) in RGB, hsl(197, 15%, 46%) in HSL, and about cmyk(26%, 7%, 0%, 47%) in CMYK. It has no registered color name of its own — the closest is Slate Gray (#708090), clearly related but distinguishable side by side at ΔE 5.17. Black text is the more readable choice on this background.

#647D87
HEX#647D87
RGBrgb(100, 125, 135)
HSLhsl(197, 15%, 46%)
HSVhsv(197, 26%, 53%)
CMYKcmyk(26%, 7%, 0%, 47%)
OKLCHoklch(57.4% 0.033 224.2)
LABlab(50.69% -7.54 -8.60)
LCHlch(50.69% 11.44 228.74)

What #647D87 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 #647D87, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Slate Gray#708090ΔE 5.17Light Slate Gray#778899ΔE 7.06Steel#71797EΔE 7.1Steel Teal#5F8A8FΔE 7.84Cadet#536872ΔE 8.24Dark Electric Blue#536878ΔE 8.9

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

#647D87 Channel Values

How #647D87 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 100 · G 125 · B 1358-bit channels as sent to the display
HSLH 197° · S 15% · L 46%Easiest model for building lighter and darker variants
HSVH 197° · S 26% · V 53%Matches the picker in most design tools
CMYKC 26% · M 7% · Y 0% · K 47%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.35:1 vs white · 4.83:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #647D87 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 text4.35:1AA normal AA large AAA normal
TextBlack text4.83:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #647D87 in the contrast checker.

Colors That Go With #647D87

Pairings derived from color-wheel relationships. The complementary color sits opposite #647D87; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#647D87
Complementary
#876E64
Analogous
#64877F
Analogous
#646B87
Triadic
#87647D
Triadic
#7D8764
Split comp.
#87646B
Split comp.
#877F64

Tints & Shades of #647D87

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

#758F99
#8DA2AA
#A1B3BA
#B9C6CB
#CDD6DA
#E5EAEB

Shades

#576D75
#4A5C64
#3D4C52
#303C41
#232B2F
#161B1D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #647D87.

How #647D87 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#647D87
Protanopia#797987
Protanomaly#717B87
Deuteranopia#757588
Deuteranomaly#6F7987
Tritanopia#627E7E
Tritanomaly#637E82
Achromatopsia#797979

Test a full palette in the color blindness simulator.

Using #647D87 in Code

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

CSS custom property--color-647d87: #647D87;
CSS backgroundbackground-color: #647D87;
Tailwind configcolors: { 'color-647d87': '#647D87' }
SwiftUIColor(red: 0.392, green: 0.490, blue: 0.529)
Android XML<color name="color_647d87">#647D87</color>
SVG fillfill="#647D87"

More Teal Colors

#647D87 sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424f5ffff002a38f0ffff002d2eeefbfb003333ecfeff003542ecf7f9003838ebffff00646600999900ebeb0d161619292924fbff36747d50bfe673a9c28dd9ccaec6cfccffff

#647D87 Frequently Asked Questions

What color is #647D87?

#647D87 is a mid-tone teal — rgb(100, 125, 135) in RGB and hsl(197, 15%, 46%) in HSL. It carries no registered color name of its own; the closest named color is Slate Gray (#708090), which is clearly related but distinguishable side by side at a CIE76 distance of 5.17.

What is the RGB value of #647D87?

#647D87 is rgb(100, 125, 135) — red 100, green 125, and blue 135 on the 0-255 scale.

What is the CMYK value of #647D87?

#647D87 converts to approximately cmyk(26%, 7%, 0%, 47%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #647D87 be black or white?

Black text is the more readable choice. #647D87 scores 4.35:1 against white and 4.83:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #647D87 as a CSS color keyword?

No. #647D87 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 slategray (#708090) at a CIE76 distance of 5.17, which is clearly related but distinguishable side by side.

Open #647D87 in a Tool

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

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