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#577D8E Color

#577D8E is rgb(87, 125, 142) in RGB, hsl(199, 24%, 45%) in HSL, and about cmyk(39%, 12%, 0%, 44%) 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 8.15. Black text is the more readable choice on this background.

#577D8E
HEX#577D8E
RGBrgb(87, 125, 142)
HSLhsl(199, 24%, 45%)
HSVhsv(199, 39%, 56%)
CMYKcmyk(39%, 12%, 0%, 44%)
OKLCHoklch(56.8% 0.05 227.6)
LABlab(50.05% -10.39 -13.74)
LCHlch(50.05% 17.22 232.92)

What #577D8E 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 #577D8E, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Slate Gray#708090ΔE 8.15Teal Blue#367588ΔE 8.18Steel Teal#5F8A8FΔE 8.49Air Force Blue#5D8AA8ΔE 8.93Dark Electric Blue#536878ΔE 9.28Light Slate Gray#778899ΔE 9.32

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

#577D8E Channel Values

How #577D8E 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 87 · G 125 · B 1428-bit channels as sent to the display
HSLH 199° · S 24% · L 45%Easiest model for building lighter and darker variants
HSVH 199° · S 39% · V 56%Matches the picker in most design tools
CMYKC 39% · M 12% · Y 0% · K 44%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.44:1 vs white · 4.73:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #577D8E 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 text4.44:1AA normal AA large AAA normal
TextBlack text4.73:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #577D8E in the contrast checker.

Colors That Go With #577D8E

Pairings derived from color-wheel relationships. The complementary color sits opposite #577D8E; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#577D8E
Complementary
#8E6957
Analogous
#578E84
Analogous
#57618E
Triadic
#8E577D
Triadic
#7D8E57
Split comp.
#8E5761
Split comp.
#8E8457

Tints & Shades of #577D8E

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

#6A92A4
#81A2B1
#9AB5C1
#B0C5CF
#C9D7DE
#DFE8EC

Shades

#4C6C7B
#405C68
#344B55
#2B3D46
#1F2C33
#131C20

Want a full 50-950 ramp with semantic roles? Generate design tokens from #577D8E.

How #577D8E 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#577D8E
Protanopia#78788E
Protanomaly#6C7A8E
Deuteranopia#72728F
Deuteranomaly#68778E
Tritanopia#537F7F
Tritanomaly#557E85
Achromatopsia#787878

Test a full palette in the color blindness simulator.

Using #577D8E in Code

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

CSS custom property--color-577d8e: #577D8E;
CSS backgroundbackground-color: #577D8E;
Tailwind configcolors: { 'color-577d8e': '#577D8E' }
SwiftUIColor(red: 0.341, green: 0.490, blue: 0.557)
Android XML<color name="color_577d8e">#577D8E</color>
SVG fillfill="#577D8E"

More Teal Colors

#577D8E sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424f5ffff002a38f0ffff002d2eeefbfb003333ecfeff003542ecf7f9003838ebffff00646600999900ebeb0d161619292924fbff36747d50bfe673a9c28dd9ccaec6cfccffff

#577D8E Frequently Asked Questions

What color is #577D8E?

#577D8E is a mid-tone teal — rgb(87, 125, 142) in RGB and hsl(199, 24%, 45%) 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 8.15.

What is the RGB value of #577D8E?

#577D8E is rgb(87, 125, 142) — red 87, green 125, and blue 142 on the 0-255 scale.

What is the CMYK value of #577D8E?

#577D8E converts to approximately cmyk(39%, 12%, 0%, 44%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #577D8E be black or white?

Black text is the more readable choice. #577D8E scores 4.44:1 against white and 4.73:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #577D8E as a CSS color keyword?

No. #577D8E 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 8.15, which is clearly related but distinguishable side by side.

Open #577D8E 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.