Inspect BlueViolet (#8A2BE2) in HEX, RGB, HSL, LCH and OKLCH, check its contrast, and copy the value you need.
BlueViolet
#8A2BE2
White text reads best on this background, at 5.96:1.
BlueViolet is one of the 148 CSS named colors, and resolves to #8A2BE2 in every browser. In numbers that is rgb(138, 43, 226) and hsl(271, 76%, 53%). Perceptually it is a mid-toned, vivid color: OKLCH puts its lightness at 53% and its chroma at 0.25. It sits in the purples at 301 degrees of OKLCH hue, and reads as a cool color.
White text clears WCAG AA on a BlueViolet background at 5.96:1. At this chroma it is loud enough to be an accent or a call to action, but it will fight anything else vivid placed next to it.
The closest CSS named colors to BlueViolet, measured with CIEDE2000, are DarkViolet (#9400D3), DarkOrchid (#9932CC), SlateBlue (#6A5ACD). If BlueViolet is not quite right, those are the nearest keywords to try before reaching for a custom value.
HEX
#8A2BE2
RGB
rgb(138, 43, 226)
HSL
hsl(271, 76%, 53%)
HWB
hwb(271 17% 11%)
CMYK
cmyk(39%, 81%, 0%, 11%)
LAB
lab(41.21 63.01 -75.96)
LCH
lch(41.21 98.69 309.68)
OKLCH
oklch(53.38% 0.2503 301.37)
WCAG asks for 4.5:1 between body text and its background. On #8A2BE2 white text measures 5.96:1 and black text 3.52:1, so white clears it and black does not.
White text on BlueViolet
WCAG 2.2
5.96:1
APCA
Lc 83
Passes AA body text
Fails AAA body text
Passes AA large text
Black text on BlueViolet
WCAG 2.2
3.52:1
APCA
Lc 25
Fails AA body text
Fails AAA body text
Passes AA large text
Check BlueViolet against any other color in the contrast checker.
BlueViolet sits at 53% OKLCH lightness. Holding its hue and chroma and moving only that value carries it up to #FAF7FF and down to #0A0019, which keeps the family recognizable instead of letting it drift toward gray the way a plain HSL ramp does.
#A451FF
20% lighter
#B783FF
40% lighter
#CCACFF
60% lighter
#E2D2FF
80% lighter
#FAF7FF
100% lighter
#7100C0
20% darker
#540092
40% darker
#3A0067
60% darker
#21003E
80% darker
#0A0019
100% darker
Build a full accessible scale from #8A2BE2 in the shade generator.
Hues rotated around #8A2BE2 in OKLCH, then pulled back into the sRGB gamut. Each swatch is labelled with the nearest CSS named color so you have a keyword to start from.
BlueViolet sits at 301 degrees. Rotating it a half turn lands on 121 degrees, the hue directly opposite. It is the strongest pairing you can make without changing lightness, and the one most likely to vibrate if you use both at full chroma.
The neighbors of BlueViolet at 271 and 331 degrees. They stay close enough to read as the same family, which is what you want for hover states, secondary surfaces and gradients.
301, 61 and 181 degrees divide the wheel into thirds. Balanced enough to carry a whole palette without one color dominating the other two.
Instead of the complement at 121 degrees, this pair flanks it at 91 and 151. You keep most of the contrast of a complementary pairing while losing the harshness.
Explore more combinations around BlueViolet on the color wheel.
The biggest shift is under achromatopsia, where #8A2BE2 reads as #4C4C4D, 31.1 CIEDE2000 units away. If BlueViolet is the only thing marking a state or a series, roughly one viewer in twelve will miss it.
Protanopia
#1448EB
Deuteranopia
#244EDB
Tritanopia
#823F63
Achromatopsia
#4C4C4D
The nearest CSS keywords to #8A2BE2, ranked by perceptual distance rather than by how close their hex digits happen to look.