#5A3F85
Closest named color: Dark Slate Blue (#483D8B). oklch(43.2% 0.114 299.4), rgb(90, 63, 133).
Aa
White text reads best on this color (8.45:1).
About this color
#5A3F85 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.114 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 0.035 away. White text reads best on it, at 8.45:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #5A3F85 |
| RGB | rgb(90, 63, 133) |
| HSL | hsl(263, 36%, 38%) |
| OKLCH | oklch(43.2% 0.114 299.4) |
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 #5A3F85 | 8.45:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #5A3F85 | 2.48:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #5A3F85 text on white | 8.45:1 | AAA | Lc 88.9 | Fine for body text |
| #5A3F85 text on black | 2.48:1 | Fails | Lc -13.3 | 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
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD4EF
oklch(88.5% 0.038 299.2)
-
Step 300
300
#C6B8E6
oklch(80.9% 0.066 298.9)
-
Step 400
400
#AA91DA
oklch(70.6% 0.108 299.4)
-
Step 500
500
#9675CF
oklch(63.2% 0.135 299.4)
-
Step 600
600
#815BBC
oklch(55.5% 0.148 299.7)
-
Step 700
700
#6D4BA2
oklch(49.1% 0.136 299.4)
-
Step 800
800 (this color)
#5A3F85
oklch(43.2% 0.114 299.4)
-
Step 900
900
#493569
oklch(37.7% 0.088 299.9)
-
Step 950
950
#2B1F3E
oklch(27% 0.058 300.4)
#5A3F85 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) | #274D87 | 0.077 |
| Deuteranopia (no green cones) | #2E4C83 | 0.071 |
| Tritanopia (no blue cones) | #514C5C | 0.087 |
| Achromatopsia (no color) | #4D4D4D | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A3F85
#5A3F85
oklch(43.2% 0.114 299.4)
- #4A5800
#4A5800
oklch(43.3% 0.103 119.8)
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 #5A3F85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.044
- Rebecca Purple #663399 ΔE 0.048
- Twilight #4E518B ΔE 0.049
- Dusk #4E5481 ΔE 0.061
- Dusty Grape #545775 ΔE 0.078
- Dusk Blue #26538D ΔE 0.083
- Denim Blue #3B5B92 ΔE 0.083
Use #5A3F85 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.