#177C9B Color

#177C9B is rgb(23, 124, 155) in RGB, hsl(194, 74%, 35%) in HSL, and about cmyk(85%, 20%, 0%, 39%) in CMYK. It has no registered color name of its own — the closest is Zircon Blue (#00849D), clearly related but distinguishable side by side at ΔE 5.82. White text is the more readable choice on this background.

#177C9B

HEX#177C9B

RGBrgb(23, 124, 155)

HSLhsl(194, 74%, 35%)

HSVhsv(194, 85%, 61%)

CMYKcmyk(85%, 20%, 0%, 39%)

OKLCHoklch(54.7% 0.097 224.7)

LABlab(47.79% -19.71 -25.02)

LCHlch(47.79% 31.85 231.77)

What #177C9B 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 #177C9B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Zircon Blue#00849DΔE 5.82 Cerulean#007BA7ΔE 7.64 Teal Blue#367588ΔE 8.93 Blue (Munsell)#0093AFΔE 10.19 Metallic Seaweed#0A7E8CΔE 10.63 Sea Blue#006994ΔE 10.95

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

#177C9B Channel Values

How #177C9B 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 23 · G 124 · B 155	8-bit channels as sent to the display
HSL	H 194° · S 74% · L 35%	Easiest model for building lighter and darker variants
HSV	H 194° · S 85% · V 61%	Matches the picker in most design tools
CMYK	C 85% · M 20% · Y 0% · K 39%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	4.78:1 vs white · 4.39:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #177C9B 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 text4.78:1AA normal AA large AAA normal

Fails AABlack text4.39:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #177C9B in the contrast checker.

Colors That Go With #177C9B

Pairings derived from color-wheel relationships. The complementary color sits opposite #177C9B; 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 #177C9B

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 #177C9B.

How #177C9B 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#177C9B

Protanopia#72729B

Protanomaly#5B769B

Deuteranopia#68689C

Deuteranomaly#53709C

Tritanopia#008080

Tritanomaly#007F8C

Achromatopsia#727272

Test a full palette in the color blindness simulator.

Using #177C9B in Code

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

CSS custom property--color-177c9b: #177C9B;

CSS backgroundbackground-color: #177C9B;

Tailwind configcolors: { 'color-177c9b': '#177C9B' }

SwiftUIColor(red: 0.090, green: 0.486, blue: 0.608)

Android XML<color name="color_177c9b">#177C9B</color>

SVG fillfill="#177C9B"

More Teal Colors

#177C9B 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

#177C9B Frequently Asked Questions

What color is #177C9B?

#177C9B is a dark teal — rgb(23, 124, 155) in RGB and hsl(194, 74%, 35%) in HSL. It carries no registered color name of its own; the closest named color is Zircon Blue (#00849D), which is clearly related but distinguishable side by side at a CIE76 distance of 5.82.

What is the RGB value of #177C9B?

#177C9B is rgb(23, 124, 155) — red 23, green 124, and blue 155 on the 0-255 scale.

What is the CMYK value of #177C9B?

#177C9B converts to approximately cmyk(85%, 20%, 0%, 39%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #177C9B be black or white?

White text is the more readable choice. #177C9B scores 4.78:1 against white and 4.39:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #177C9B as a CSS color keyword?

No. #177C9B 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 steelblue (#4682B4) at a CIE76 distance of 14.4, which is visibly different.

Open #177C9B 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.