Phthalo Blue (#000F89)

The hex code for Phthalo Blue is #000F89. It is rgb(0, 15, 137) in RGB, hsl(233, 100%, 27%) in HSL, and about cmyk(100%, 89%, 0%, 46%) in CMYK — a dark blue. White text is the more readable choice on this background.

#000F89

HEX#000F89

RGBrgb(0, 15, 137)

HSLhsl(233, 100%, 27%)

HSVhsv(233, 100%, 54%)

CMYKcmyk(100%, 89%, 0%, 46%)

OKLCHoklch(29.7% 0.189 264.2)

LABlab(14.73% 37.15 -67.22)

LCHlch(14.73% 76.80 298.93)

Colors Closest to Phthalo Blue

Phthalo Blue is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Navy#000080ΔE 5.11 Dark Blue#00008BΔE 7.75 Imperial Blue#002395ΔE 9.13 Samsung Blue#12279EΔE 9.68 Blue Ribbon#0B10A2ΔE 11.92 Blue (Pantone)#0018A8ΔE 12.31

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

#000F89 Channel Values

How Phthalo Blue 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 15 · B 137	8-bit channels as sent to the display
HSL	H 233° · S 100% · L 27%	Easiest model for building lighter and darker variants
HSV	H 233° · S 100% · V 54%	Matches the picker in most design tools
CMYK	C 100% · M 89% · Y 0% · K 46%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	14.69:1 vs white · 1.43:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Phthalo Blue 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 text14.69:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.43:1AA normal ✗AA large ✗AAA normal ✗

Need a specific ratio against another background? Open #000F89 in the contrast checker.

Colors That Go With Phthalo Blue

Pairings derived from color-wheel relationships. The complementary color sits opposite Phthalo Blue; 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 Phthalo Blue

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 #000F89.

How Phthalo Blue 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#000F89

Protanopia#0D0D89

Protanomaly#080E89

Deuteranopia#0B0B89

Deuteranomaly#060C89

Tritanopia#003535

Tritanomaly#002A62

Achromatopsia#282828

Test a full palette in the color blindness simulator.

Using #000F89 in Code

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

CSS custom property--phthalo-blue: #000F89;

CSS backgroundbackground-color: #000F89;

Tailwind configcolors: { 'phthalo-blue': '#000F89' }

SwiftUIColor(red: 0.000, green: 0.059, blue: 0.537)

Android XML<color name="phthalo_blue">#000F89</color>

SVG fillfill="#000F89"

More Blue Colors

Phthalo Blue sits in the bluefamily. These are its neighbours across that family's full range, each with its own breakdown.

0014a8 0000ff 0018a8 0000f5 001c38 0000f0 001c3d 0000eb 002147 0000e6 002387 0000db 0073cf 0e0e48 193cb8 272e34 364153 4b61d1 615fff 77a5ca 93d3fb b3b3ff d1d6dc f0f9ff

#000F89 Frequently Asked Questions

What is the hex code for Phthalo Blue?

The hex code for Phthalo Blue is #000F89. That is rgb(0, 15, 137) in RGB, hsl(233, 100%, 27%) in HSL, and approximately cmyk(100%, 89%, 0%, 46%) in CMYK.

What is the RGB value of #000F89?

#000F89 is rgb(0, 15, 137) — red 0, green 15, and blue 137 on the 0-255 scale.

What is the CMYK value of #000F89?

#000F89 converts to approximately cmyk(100%, 89%, 0%, 46%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #000F89 be black or white?

White text is the more readable choice. #000F89 scores 14.69:1 against white and 1.43:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #000F89 as a CSS color keyword?

No. #000F89 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 navy (#000080) at a CIE76 distance of 5.11, which is clearly related but distinguishable side by side.

Open Phthalo Blue 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 blue in the color library, the guide to shades of blue, or the full color library.