#001B1F Color

#001B1F is rgb(0, 27, 31) in RGB, hsl(188, 100%, 6%) in HSL, and about cmyk(100%, 13%, 0%, 88%) in CMYK. It has no registered color name of its own — the closest is Rich Black (#010B13), clearly related but distinguishable side by side at ΔE 9.01. White text is the more readable choice on this background.

#001B1F

HEX#001B1F

RGBrgb(0, 27, 31)

HSLhsl(188, 100%, 6%)

HSVhsv(188, 100%, 12%)

CMYKcmyk(100%, 13%, 0%, 88%)

OKLCHoklch(20.3% 0.035 208)

LABlab(7.85% -8.87 -6.09)

LCHlch(7.85% 10.76 214.48)

What #001B1F 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 #001B1F, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Rich Black#010B13ΔE 9.01 Dark Jungle Green#1A2421ΔE 9.2 Off Black#1A1A1AΔE 10.85 Eerie Black#1B1B1BΔE 10.92 Soft Black#131313ΔE 10.93 Charcoal Black#232B2BΔE 11.42

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

#001B1F Channel Values

How #001B1F 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 0 · G 27 · B 31	8-bit channels as sent to the display
HSL	H 188° · S 100% · L 6%	Easiest model for building lighter and darker variants
HSV	H 188° · S 100% · V 12%	Matches the picker in most design tools
CMYK	C 100% · M 13% · Y 0% · K 88%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	17.85:1 vs white · 1.18:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #001B1F 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 text17.85:1AA normal AA large AAA normal

Fails AABlack text1.18:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #001B1F in the contrast checker.

Colors That Go With #001B1F

Pairings derived from color-wheel relationships. The complementary color sits opposite #001B1F; 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 #001B1F

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

#001B1F

#00161A

#001214

Want a full 50-950 ramp with semantic roles? Generate design tokens from #001B1F.

How #001B1F 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#001B1F

Protanopia#18181F

Protanomaly#11191F

Deuteranopia#15151F

Deuteranomaly#0E171F

Tritanopia#001C1C

Tritanomaly#001B1D

Achromatopsia#171717

Test a full palette in the color blindness simulator.

Using #001B1F in Code

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

CSS custom property--color-001b1f: #001B1F;

CSS backgroundbackground-color: #001B1F;

Tailwind configcolors: { 'color-001b1f': '#001B1F' }

SwiftUIColor(red: 0.000, green: 0.106, blue: 0.122)

Android XML<color name="color_001b1f">#001B1F</color>

SVG fillfill="#001B1F"

More Teal Colors

#001B1F 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

#001B1F Frequently Asked Questions

What color is #001B1F?

#001B1F is a darkest teal — rgb(0, 27, 31) in RGB and hsl(188, 100%, 6%) in HSL. It carries no registered color name of its own; the closest named color is Rich Black (#010B13), which is clearly related but distinguishable side by side at a CIE76 distance of 9.01.

What is the RGB value of #001B1F?

#001B1F is rgb(0, 27, 31) — red 0, green 27, and blue 31 on the 0-255 scale.

What is the CMYK value of #001B1F?

#001B1F converts to approximately cmyk(100%, 13%, 0%, 88%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #001B1F be black or white?

White text is the more readable choice. #001B1F scores 17.85:1 against white and 1.18:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #001B1F as a CSS color keyword?

No. #001B1F 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 black (#000000) at a CIE76 distance of 13.31, which is visibly different.

Open #001B1F in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

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