#5A3D90
Closest named color: Dark Slate Blue (#483D8B). oklch(43.6% 0.132 296.7), rgb(90, 61, 144).
Aa
White text reads best on this color (8.38:1).
About this color
#5A3D90 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.132 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 8.38:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #5A3D90 |
| RGB | rgb(90, 61, 144) |
| HSL | hsl(261, 40%, 40%) |
| OKLCH | oklch(43.6% 0.132 296.7) |
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 #5A3D90 | 8.38:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #5A3D90 | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #5A3D90 text on white | 8.38:1 | AAA | Lc 88.6 | Fine for body text |
| #5A3D90 text on black | 2.50:1 | Fails | Lc -13.6 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F3
oklch(88.5% 0.043 295.9)
-
Step 300
300
#C5B7ED
oklch(80.9% 0.077 296.5)
-
Step 400
400
#A88FE4
oklch(70.6% 0.124 296.6)
-
Step 500
500
#9471DC
oklch(63% 0.158 296.7)
-
Step 600
600
#7F57CA
oklch(55.6% 0.172 296.4)
-
Step 700
700
#6C46AF
oklch(49.1% 0.161 296.7)
-
Step 800
800 (this color)
#5A3D90
oklch(43.6% 0.132 296.7)
-
Step 900
900
#483371
oklch(37.7% 0.103 296.8)
-
Step 950
950
#2A1E42
oklch(26.9% 0.066 297.1)
#5A3D90 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) | #154E93 | 0.091 |
| Deuteranopia (no green cones) | #204D8E | 0.084 |
| Tritanopia (no blue cones) | #4D4E60 | 0.104 |
| Achromatopsia (no color) | #4E4E4E | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A3D90
#5A3D90
oklch(43.6% 0.132 296.7)
- #4E5800
#4E5800
oklch(43.6% 0.101 117.1)
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 #5A3D90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Rebecca Purple #663399 ΔE 0.033
- Blueberry #464196 ΔE 0.036
- Twilight #4E518B ΔE 0.056
- Dusk #4E5481 ΔE 0.072
- Cobalt #1E488F ΔE 0.084
- Dusk Blue #26538D ΔE 0.087
- Denim Blue #3B5B92 ΔE 0.087
Use #5A3D90 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.