chromary

Ultramarine≈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

Your hue turned 15 degrees toward the cool side of the wheel, then 30. Lightness and chroma stay put.

Cooler · One step into the shade, then two.

supportDenimCH 0075 · #0051CB
neutralWorkwearCH 0111 · #00619F
nightInkCH 0003 · #0B0F1A
paperClub SodaCH 0580 · #EDF1FF
no number yet
chromaryclaim its numberUltramarine≈Named after Ultramarine #3F00FF, its nearest entry in the dictionary.

Official neighbors

CH 0080Ultramarine
CH 0109Pure Blue

Official opposites

CH 0126Burnt Caramel
CH 0251Old Brass

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 UltramarineLc 81 · passesWCAG 2 · 6.9 : 1
AaUltramarine on Club SodaLc 77 · passesWCAG 2 · 6.9 : 1

Avoid

AaInk on UltramarineLc 18 · failsWCAG 2 · 2.5 : 1
AaUltramarine on InkLc 16 · failsWCAG 2 · 2.5 : 1

Harmonies

ComplementarySplit complementaryTriadTetradAnalogousTintsShadesWarmerCoolerMuted companion