#8573FB
Closest named color: Medium Slate Blue (#7B68EE). oklch(64% 0.195 285.5), rgb(133, 115, 251).
Aa
Black text reads best on this color (5.84:1).
About this color
#8573FB is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.195 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.035 away. Black text reads best on it, at 5.84:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #8573FB |
| RGB | rgb(133, 115, 251) |
| HSL | hsl(248, 94%, 72%) |
| OKLCH | oklch(64% 0.195 285.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #8573FB | 3.59:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #8573FB | 5.84:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #8573FB text on white | 3.59:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #8573FB text on black | 5.84:1 | AA | Lc -38.5 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E8E8FC
oklch(93.7% 0.027 285.9)
-
Step 200
200
#D5D5FC
oklch(88.5% 0.053 285.3)
-
Step 300
300
#BAB8FC
oklch(80.9% 0.095 285.4)
-
Step 400
400
#9990FB
oklch(70.7% 0.153 285.6)
-
Step 500
500 (this color)
#8573FB
oklch(64% 0.195 285.5)
-
Step 600
600
#6E54E7
oklch(55.7% 0.212 285.3)
-
Step 700
700
#5D43C9
oklch(49.2% 0.197 285.5)
-
Step 800
800
#4B38A2
oklch(42.7% 0.163 285.4)
-
Step 900
900
#3E3281
oklch(37.7% 0.128 285.4)
-
Step 950
950
#241E4B
oklch(26.9% 0.08 285.8)
#8573FB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #258BFF | 0.101 |
| Deuteranopia (no green cones) | #1F83F8 | 0.101 |
| Tritanopia (no blue cones) | #5D91AC | 0.164 |
| Achromatopsia (no color) | #878787 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8573FB
#8573FB
oklch(64% 0.195 285.5)
- #989000
#989000
oklch(64% 0.136 105.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #8573FB, closest first.
No curated palette has a color within ΔE 0.04 of #8573FB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.035
- Cornflower #6A79F7 ΔE 0.039
- Periwinkle #8E82FE ΔE 0.039
- Medium Purple #9370DB ΔE 0.052
- Lavender Blue #8B88F8 ΔE 0.053
- Purpley #8756E4 ΔE 0.069
- Lighter Purple #A55AF4 ΔE 0.070
- Soft Blue #6488EA ΔE 0.070
Use #8573FB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.