Blue Chalk#F1E9FF, a pastel purple

At a glanceBlue Chalk is #F1E9FF, oklch(94.7% 0.031 302.3), a pastel purple. Its hue sits mid-wheel, neither warm nor cool. Partner it with a warm pale lemon #DAD197 as an accent, a cool bold blue #3E5D9F for harmony, and a vivid violet #B170FF the same color turned up. Put it to work as a light surface or a tinted neutral, and it takes black text at AA contrast. Expect a visible shift on coated presses, though.
Color codes

Blue Chalk in RGB, HSL, OKLCH & more

Ready to ship: every line pastes straight into your codebase, and the whole file copies at once.

f1e9ff.css
:root { /* how your code speaks it */ /* how your eyes measure it */ /* how the lab measures it, D65 2° */}/* tailwind v4 */

ART is Rhapsody's perceptual model. How ART works

Color family

What kind of purple is Blue Chalk?

Every color has a place in the standard vocabulary. This is Blue Chalk's, measured rather than asserted.

Blue Chalk's Munsell numbers: hue 3.6P, value 9.3 (how light), chroma 4.3 (how vivid). That places it in ISCC-NBS block very pale purple, one of 267 named ranges the standard sorts every color into. Chroma 4.3 is low. This is a greyed, muted purple, nearer neutral than vivid, which is why it reads as a surface rather than an accent.

It's already at the edge of what your screen can show for this hue. This color can't go any more saturated and still render.

Munsell coordinates and block from the ISCC-NBS system, computed by Rhapsody's own renotation inversion.

Tints & shades

Shades of Blue Chalk, lighter and darker

For hover states, washed backgrounds, and dark surfaces that still read as #F1E9FF. 13 steps, spaced evenly by eye, with the color itself sitting at its natural depth, blue-chalk-100.

Tints (light surfaces; dark text passes on every one)

Midtones (the color at full strength, for brand & accent work)

Shades (dark surfaces; light text passes on every one)

Rhapsody Palette

Most tools mix. Rhapsody measures.

Paste any color. The whole system comes back, contrast-checked before you see it.

Build your palette free

The window on the right was generated from #F1E9FF, like this whole page.

Accessibility

Is Blue Chalk accessible? Contrast with white & black

Strong contrast makes your work readable by everyone, and meets the WCAG standard accessibility law points at. AA is the floor; AAA is the tier worth aiming for in body text. Black text on #F1E9FF clears WCAG AAA. Every strip below is one surface, and the marks are the steps that reach AAA on it.

Rows are text, columns are background · 62 of 210 pairings reach WCAG 2.2 AAA, shown here.

Rhapsody Palette

Ship the audit, not screenshots.

Run #F1E9FF against the colors you actually ship, every pairing and any target, and export it: exact ratios, the AA tier, APCA, in one file.

Get the full audit

The audit on the right was calibrated from #F1E9FF, like this whole page.

Print

Blue Chalk in CMYK: one value for files, one per press

This color shifts further than a press run can hold, so expect a visible difference. The pairs below show where each standard lands.

In CMYK, #F1E9FF is . That is the value design tools and file formats use when no press is involved.

On press (what each standard prints)

CGATS21 CRPC1 (coldset news) shifts on press
on screenon press

shifts ΔE00 3.9, 1.6× the 2.5 a run varies by

GRACoL 2013 Uncoated (CRPC3) shifts on press
on screenon press

shifts ΔE00 4.9, 1.9× the 2.5 a run varies by

GRACoL 2013 (CRPC6) shifts on press
on screenon press

shifts ΔE00 4.3, 1.7× the 2.5 a run varies by

PSO Coated v3 (FOGRA51) shifts on press
on screenon press

shifts ΔE00 4.2, 1.7× the 2.5 a run varies by

Coated FOGRA39 shifts on press
on screenon press

shifts ΔE00 3.4, 1.4× the 2.5 a run varies by

Japan Color 2011 Coated shifts on press
on screenon press

shifts ΔE00 3.5, 1.4× the 2.5 a run varies by

APTEC Flexo Coated shifts on press
on screenon press

shifts ΔE00 4.3, 1.7× the 2.5 a run varies by

CGATS21 CRPC7 (extended gamut) shifts on press
on screenon press

shifts ΔE00 3.4, 1.4× the 2.5 a run varies by

Press values computed through the ICC characterization data each standard proofs against. Each CMYK above is the closest that standard can get.

Rhapsody Converter · coming soon

No surprises at the printer.

Run any color through the major press standards: FOGRA51, GRACoL, Japan Color, FOGRA39. It's coming soon. Create a free account and you'll get a note the moment it's live.

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The strip shows this page's tints and shades on screen, then through a standard GRACoL 2013 conversion.

The Blue Chalks

Colors similar to Blue Chalk

Here are other colors similar to Blue Chalk along with accessible text pairings and whether or not they're print-safe. Explore The Purples

MagnoliaMagnolia#F8F4FFblack text · AAAlighter than the paper
WhisperWhisper#F7F5FAblack text · AAAlighter than the paper
White LilacWhite Lilac#F8F7FCblack text · AAAlighter than the paper
SnuffSnuff#E2D8EDblack text · AAA! within tolerance
MaverickMaverick#D8C2D5black text · AAA✓ prints exactly
ThistleThistle#D8BFD8black text · AAA✓ prints exactly
Gray SuitGray Suit#C1BECDblack text · AAA✓ prints exactly
French GrayFrench Gray#BDBDC6black text · AAA✓ prints exactly
Pairings

Colors that go with Blue Chalk

The complementary color, straight across the wheel, is a light lime #BCE09B. Rhapsody's pick is the split complement, just to one side of it, a livelier pair.

The accent is for the moments that need attention, the harmony for the ones that need calm; the vivid is the same color with the volume up, for when it has to shout.

Downloads

Take Blue Chalk with you

The work on this page doesn't stay here. Save a card and the color arrives in your file, your deck or your board already decided.

Blue Chalk color codes: hex #F1E9FF, RGB, HSL, CMYK, and OKLCH, from Rhapsody
Paste it anywhere without coming back for it.
The full tonal scale of Blue Chalk, 13 steps from light to dark with every hex, from Rhapsody
Reach for the right depth instead of the one you have.
Blue Chalk paired with a warm pale lemon #DAD197, a cool bold blue #3E5D9F, a vivid violet #B170FF: hex values and roles, from Rhapsody
Open a palette that already works together.
One free account

Your system is already built.

Rhapsody built it before you even asked: the scale, the neutrals, the utilities, every pairing calibrated.

This page's whole theme is built from one color. Palette does the same for yours: every step calibrated, every pairing checked, press included.

Every color on this page was calibrated, not mixed.

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