chromary

Shale≈Ink: auto. Text on this color is black or white, whichever reads better. Tap to set white.

no CH number yet · claim this color and its own CH number

The hue straight across the wheel. Once at full punch, once in your register: your lightness, and as much chroma as the hue holds there.

Complementary · Straight across the wheel, loud, then in your register.

accentNasturtiumCH 0186 · #F97628
supportPewterCH 0564 · #655A55
nightCharcoalCH 0560 · #081115
paperClub SodaCH 0580 · #E7F4FA
no number yet
chromaryclaim its numberShale≈Named after Shale #5B646F, its nearest entry in the dictionary.

Official neighbors

CH 0577Shale
CH 0564Pewter

Color Values

Exact from the hex. Tap any value to copy it.

Full list

ContrastGraded by APCA, the Accessible Perceptual Contrast Algorithm, which measures how strongly text stands off its ground the way eyes see it, as lightness contrast (Lc) from 0 to about 106. Lc 60 and up reads as body text, 45 to 60 as large text and headlines; under 45, avoid it for text. The same measure picks black or white text everywhere on Chromary. The older WCAG 2 ratio is shown small under each for anyone quoting that standard.

Use

AaClub Soda on ShaleLc 79 · passesWCAG 2 · 5.9 : 1
AaShale on Club SodaLc 75 · passesWCAG 2 · 5.9 : 1

Avoid

AaCharcoal on ShaleLc 21 · failsWCAG 2 · 2.9 : 1
AaShale on CharcoalLc 19 · failsWCAG 2 · 2.9 : 1

Harmonies

ComplementarySplit complementaryTriadTetradAnalogousTintsShadesWarmerCoolerMuted companion