#5C3A91
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.138 298.5), rgb(92, 58, 145).
Aa
White text reads best on this color (8.50:1).
About this color
#5C3A91 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.138 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.026 away. White text reads best on it, at 8.50:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.46:1 |
| White text | 8.50:1 |
Values
| HEX | #5C3A91 |
| RGB | rgb(92, 58, 145) |
| HSL | hsl(263, 43%, 40%) |
| OKLCH | oklch(43.3% 0.138 298.5) |
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 #5C3A91 | 8.50:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #5C3A91 | 2.46:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #5C3A91 text on white | 8.50:1 | AAA | Lc 88.9 | Fine for body text |
| #5C3A91 text on black | 2.46:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD3F4
oklch(88.4% 0.046 297.9)
-
Step 300
300
#C7B6EE
oklch(80.9% 0.08 298.5)
-
Step 400
400
#AB8EE6
oklch(70.8% 0.129 298.2)
-
Step 500
500
#986FDE
oklch(63.2% 0.164 298.7)
-
Step 600
600
#8354CC
oklch(55.6% 0.179 298.5)
-
Step 700
700
#6F43B1
oklch(49.1% 0.168 298.4)
-
Step 800
800 (this color)
#5C3A91
oklch(43.3% 0.138 298.5)
-
Step 900
900
#4A3172
oklch(37.6% 0.108 298.8)
-
Step 950
950
#2B1E43
oklch(27.1% 0.068 298)
#5C3A91 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) | #094D94 | 0.101 |
| Deuteranopia (no green cones) | #1B4C8F | 0.093 |
| Tritanopia (no blue cones) | #504C60 | 0.105 |
| Achromatopsia (no color) | #4D4D4D | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C3A91
#5C3A91
oklch(43.3% 0.138 298.5)
- #4C5800
#4C5800
oklch(43.5% 0.102 118.5)
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 #5C3A91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.026
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.040
- Twilight #4E518B ΔE 0.064
- Dusk #4E5481 ΔE 0.079
- Chrysanthemum #560BAD ΔE 0.084
- Blue With A Hint Of Purple #533CC6 ΔE 0.087
- Bluey Purple #6241C7 ΔE 0.088
Use #5C3A91 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.