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#280B6A Color

#280B6A is rgb(40, 11, 106) in RGB, hsl(258, 81%, 23%) in HSL, and about cmyk(62%, 90%, 0%, 58%) in CMYK. It has no registered color name of its own — the closest is Persian Indigo (#32127A), clearly related but distinguishable side by side at ΔE 6. White text is the more readable choice on this background.

#280B6A
HEX#280B6A
RGBrgb(40, 11, 106)
HSLhsl(258, 81%, 23%)
HSVhsv(258, 90%, 42%)
CMYKcmyk(62%, 90%, 0%, 58%)
OKLCHoklch(27.6% 0.146 285.7)
LABlab(13.14% 33.65 -49.88)
LCHlch(13.14% 60.17 304.00)

What #280B6A 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 #280B6A, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Persian Indigo#32127AΔE 6Midnight Blue#191970ΔE 7.96Spanish Violet#4C2882ΔE 12.95KSU Purple#512888ΔE 13.48Resolution Blue#002387ΔE 13.87Cosmic Cobalt#2E2D88ΔE 14.15

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

#280B6A Channel Values

How #280B6A 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 40 · G 11 · B 1068-bit channels as sent to the display
HSLH 258° · S 81% · L 23%Easiest model for building lighter and darker variants
HSVH 258° · S 90% · V 42%Matches the picker in most design tools
CMYKC 62% · M 90% · Y 0% · K 58%Approximate ink mix; confirm with an ICC profile before printing
Luminance15.6:1 vs white · 1.35:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #280B6A 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 text15.6:1AA normal AA large AAA normal
Fails AABlack text1.35:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #280B6A in the contrast checker.

Colors That Go With #280B6A

Pairings derived from color-wheel relationships. The complementary color sits opposite #280B6A; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#280B6A
Complementary
#4E6A0B
Analogous
#0B1E6A
Analogous
#570B6A
Triadic
#6A280B
Triadic
#0B6A28
Split comp.
#6A570B
Split comp.
#1E6A0B

Tints & Shades of #280B6A

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

#3B109D
#4C15CB
#672FE9
#8C62EF
#B195F4
#D3C3F9

Shades

#220A5C
#1F0953
#1A0745
#150637
#10042A
#0C0320

Want a full 50-950 ramp with semantic roles? Generate design tokens from #280B6A.

How #280B6A 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#280B6A
Protanopia#13136A
Protanomaly#1D106A
Deuteranopia#18186A
Deuteranomaly#1F146A
Tritanopia#0B2828
Tritanomaly#1A1F4B
Achromatopsia#242424

Test a full palette in the color blindness simulator.

Using #280B6A in Code

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

CSS custom property--color-280b6a: #280B6A;
CSS backgroundbackground-color: #280B6A;
Tailwind configcolors: { 'color-280b6a': '#280B6A' }
SwiftUIColor(red: 0.157, green: 0.043, blue: 0.416)
Android XML<color name="color_280b6a">#280B6A</color>
SVG fillfill="#280B6A"

More Purple Colors

#280B6A sits in the purple family. These are its neighbours across that family's full range, each with its own breakdown.

150024fdf8ff170b22fdf4ff1b0d35faf5ff1d0731fae8ff1e0033f6cfff20002ef3e8ff3000524020605414906600cc7008e78806ce9900cca11fffb19cd9c27affcebeefe0b2eb

#280B6A Frequently Asked Questions

What color is #280B6A?

#280B6A is a dark purple — rgb(40, 11, 106) in RGB and hsl(258, 81%, 23%) in HSL. It carries no registered color name of its own; the closest named color is Persian Indigo (#32127A), which is clearly related but distinguishable side by side at a CIE76 distance of 6.

What is the RGB value of #280B6A?

#280B6A is rgb(40, 11, 106) — red 40, green 11, and blue 106 on the 0-255 scale.

What is the CMYK value of #280B6A?

#280B6A converts to approximately cmyk(62%, 90%, 0%, 58%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #280B6A be black or white?

White text is the more readable choice. #280B6A scores 15.6:1 against white and 1.35:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #280B6A as a CSS color keyword?

No. #280B6A 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 midnightblue (#191970) at a CIE76 distance of 7.96, which is clearly related but distinguishable side by side.

Open #280B6A in a Tool

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

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