#5B18B9
Closest named color: Chrysanthemum (#560BAD). oklch(42.8% 0.22 292.8), rgb(91, 24, 185).
Aa
White text reads best on this color (9.22:1).
About this color
#5B18B9 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.220 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Chrysanthemum (#560BAD), ΔE 0.026 away. White text reads best on it, at 9.22:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.220) |
| Temperature | in between |
| Nearest name | Chrysanthemum (#560BAD) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #5B18B9 |
| RGB | rgb(91, 24, 185) |
| HSL | hsl(265, 77%, 41%) |
| OKLCH | oklch(42.8% 0.22 292.8) |
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 #5B18B9 | 9.22:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #5B18B9 | 2.27:1 | Fails | Lc 14.2 | Not readable |
| #5B18B9 text on white | 9.22:1 | AAA | Lc 89.7 | Fine for body text |
| #5B18B9 text on black | 2.27:1 | Fails | Lc -12.5 | Not readable |
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 800.
-
Step 50
50
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#EAE6FF
oklch(93.6% 0.034 293.1)
-
Step 200
200
#DAD2FF
oklch(88.5% 0.062 293.2)
-
Step 300
300
#C3B4FF
oklch(80.9% 0.105 293.1)
-
Step 400
400
#A689FF
oklch(70.7% 0.169 292.9)
-
Step 500
500
#9364FF
oklch(63.1% 0.22 293)
-
Step 600
600
#8232FF
oklch(55.6% 0.272 292.8)
-
Step 700
700
#7010E5
oklch(49.1% 0.266 292.7)
-
Step 800
800 (this color)
#5B18B9
oklch(42.8% 0.22 292.8)
-
Step 900
900
#4A2092
oklch(37.8% 0.172 293)
-
Step 950
950
#2B1555
oklch(27% 0.109 293.5)
#5B18B9 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) | #0049BD | 0.118 |
| Deuteranopia (no green cones) | #0044B6 | 0.115 |
| Tritanopia (no blue cones) | #3B4C6D | 0.171 |
| Achromatopsia (no color) | #474747 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B18B9
#5B18B9
oklch(42.8% 0.22 292.8)
- #505400
#505400
oklch(42.8% 0.095 112.9)
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 #5B18B9, closest first.
No curated palette has a color within ΔE 0.04 of #5B18B9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chrysanthemum #560BAD ΔE 0.026
- Violet Blue #510AC9 ΔE 0.035
- Purple Blue #5D21D0 ΔE 0.040
- Grape #7209B7 ΔE 0.048
- Imperial Purple #480CA8 ΔE 0.050
- Blurple #5539CC ΔE 0.059
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Indigo Blue #3A18B1 ΔE 0.065
Use #5B18B9 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.