#5B3C8A
Closest named color: Dark Slate Blue (#483D8B). oklch(43.1% 0.126 299.4), rgb(91, 60, 138).
Aa
White text reads best on this color (8.54:1).
About this color
#5B3C8A is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.126 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.034 away. White text reads best on it, at 8.54:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #5B3C8A |
| RGB | rgb(91, 60, 138) |
| HSL | hsl(264, 39%, 39%) |
| OKLCH | oklch(43.1% 0.126 299.4) |
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 #5B3C8A | 8.54:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #5B3C8A | 2.45:1 | Fails | Lc 14.9 | Not readable |
| #5B3C8A text on white | 8.54:1 | AAA | Lc 89.1 | Fine for body text |
| #5B3C8A text on black | 2.45:1 | Fails | Lc -13.1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4F1
oklch(88.6% 0.041 299.7)
-
Step 300
300
#C7B7EA
oklch(81% 0.073 299.1)
-
Step 400
400
#AB8FDF
oklch(70.6% 0.118 299.5)
-
Step 500
500
#9772D6
oklch(63.1% 0.149 299.2)
-
Step 600
600
#8358C4
oklch(55.7% 0.163 299.4)
-
Step 700
700
#6F47A9
oklch(49.2% 0.152 299.6)
-
Step 800
800 (this color)
#5B3C8A
oklch(43.1% 0.126 299.4)
-
Step 900
900
#4A336D
oklch(37.6% 0.098 300)
-
Step 950
950
#2B1F40
oklch(27.1% 0.061 299.1)
#5B3C8A 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) | #1C4C8D | 0.089 |
| Deuteranopia (no green cones) | #264C88 | 0.083 |
| Tritanopia (no blue cones) | #514C5D | 0.097 |
| Achromatopsia (no color) | #4C4C4C | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3C8A
#5B3C8A
oklch(43.1% 0.126 299.4)
- #4A5700
#4A5700
oklch(43% 0.101 119.2)
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 #5B3C8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Rebecca Purple #663399 ΔE 0.037
- Blueberry #464196 ΔE 0.041
- Twilight #4E518B ΔE 0.057
- Dusk #4E5481 ΔE 0.071
- Cobalt #1E488F ΔE 0.086
- Dusk Blue #26538D ΔE 0.089
- Dusty Grape #545775 ΔE 0.089
Use #5B3C8A 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.