#5D378D
Closest named color: Rebecca Purple (#663399). oklch(42.7% 0.138 301.1), rgb(93, 55, 141).
Aa
White text reads best on this color (8.76:1).
About this color
#5D378D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.138 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.027 away. White text reads best on it, at 8.76:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #5D378D |
| RGB | rgb(93, 55, 141) |
| HSL | hsl(267, 44%, 38%) |
| OKLCH | oklch(42.7% 0.138 301.1) |
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 #5D378D | 8.76:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #5D378D | 2.39:1 | Fails | Lc 14.3 | Not readable |
| #5D378D text on white | 8.76:1 | AAA | Lc 89.6 | Fine for body text |
| #5D378D text on black | 2.39:1 | Fails | Lc -12.6 | 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
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F3
oklch(88.6% 0.045 301.1)
-
Step 300
300
#C9B5ED
oklch(80.9% 0.081 301)
-
Step 400
400
#AF8CE4
oklch(70.7% 0.13 301.5)
-
Step 500
500
#9B6DDC
oklch(63% 0.165 300.9)
-
Step 600
600
#8752C9
oklch(55.6% 0.179 301.3)
-
Step 700
700
#7242AE
oklch(49.1% 0.166 300.9)
-
Step 800
800 (this color)
#5D378D
oklch(42.7% 0.138 301.1)
-
Step 900
900
#4C3171
oklch(37.8% 0.107 300.9)
-
Step 950
950
#2C1D42
oklch(26.9% 0.068 300.6)
#5D378D 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) | #084A90 | 0.106 |
| Deuteranopia (no green cones) | #1D4A8B | 0.097 |
| Tritanopia (no blue cones) | #53495C | 0.105 |
| Achromatopsia (no color) | #4B4B4B | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D378D
#5D378D
oklch(42.7% 0.138 301.1)
- #475700
#475700
oklch(42.8% 0.103 121.1)
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 #5D378D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.027
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.046
- Twilight #4E518B ΔE 0.069
- Chrysanthemum #560BAD ΔE 0.083
- Dusk #4E5481 ΔE 0.084
- Imperial Purple #480CA8 ΔE 0.092
- Grape #7209B7 ΔE 0.093
Use #5D378D 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.