ColrShift9370DB (mediumpurple) — RGB, HSL, CMYK and Contrast
A purple at 65% lightness and 60% saturation, which puts it at 3.76:1 against white and 5.58:1 against black. The tables below give the notation conversions, the tints and shades that keep the hue intact, and the harmonies that pair with it.
Notation conversions
| Notation | Value |
|---|---|
| HEX | 9370DB |
| RGB | rgb(147, 112, 219) |
| HSL | hsl(260, 60%, 65%) |
| CMYK | cmyk(33%, 49%, 0%, 14%) |
| Relative luminance | 0.2291 |
| Perceived brightness | 52.8 / 100 |
Contrast against pure white and pure black
Pair this colour with the two extremes to see which is the safer text partner. AA needs 4.5:1 for body text and 3:1 for large text; AAA raises that to 7:1 and 4.5:1.
| Against | Hex | Ratio | AA text | AA large | AAA text |
|---|---|---|---|---|---|
| #FFFFFF | white | 3.76:1 | fail | pass | fail |
| #000000 | black | 5.58:1 | pass | pass | fail |
Tints and shades
Lightness moves in ten-point steps while hue and saturation stay fixed, which keeps the colour recognisable in a scale. The last column is the ratio against white text, useful for deciding where a scale stops working as a background.
| Step | Hex | HSL | vs white text |
|---|---|---|---|
| shade -30 | #47248e | hsl(260, 60%, 35%) | 10.99:1 |
| shade -20 | #5b2eb7 | hsl(260, 60%, 45%) | 8.34:1 |
| shade -10 | #7447d1 | hsl(260, 60%, 55%) | 5.89:1 |
| tint +10 | #b299e5 | hsl(260, 60%, 75%) | 2.45:1 |
| tint +20 | #d1c1f0 | hsl(260, 60%, 85%) | 1.67:1 |
| tint +30 | #efeafa | hsl(260, 60%, 95%) | 1.18:1 |
Harmonies
| Scheme | Hex |
|---|---|
| Complementary | #b8db70 |
| Analogous −30 | #7082db |
| Analogous +30 | #c970db |
| Triadic −120 | #70db93 |
| Triadic +120 | #db9370 |
Measured rather than eyeballed: hue 259.6°, saturation 59.8%, lightness 64.9%, relative luminance 0.2291 — four decimals is the precision the WCAG formula actually needs — and perceived brightness 52.8 out of 100. Entry 47 of 69 in this library, it scores 3.76:1 on white and 5.58:1 on black, a 1.82 spread. The complementary #b8db70 sits 180° away on the wheel, and the scale brackets it with #47248e below and #efeafa above.
Nearby colours
Frequently asked questions
What text colour should sit on 9370DB?
Black gives 5.58:1 and white gives 3.76:1, so black wins at 5.58:1. That clears the 4.5:1 AA threshold for normal text, but not the 7:1 AAA threshold.
Do the CMYK numbers match a print workflow?
They are the naive conversion from RGB, which assumes no ink limit, no colour profile and no black generation strategy. Real print work needs a profile-aware conversion; the values here are the ones the converter reports and are best used as a starting point for a designer rather than a press-ready separations file.
Convert any other colour, or test a pair against each other, in the ColrShift colour converter and contrast checker. The colour library groups every entry on this site by hue family.