#5F3B8B
Closest named color: Rebecca Purple (#663399). oklch(43.4% 0.13 302.1), rgb(95, 59, 139).
Aa
White text reads best on this color (8.45:1).
About this color
#5F3B8B is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.130 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 8.45:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #5F3B8B |
| RGB | rgb(95, 59, 139) |
| HSL | hsl(267, 40%, 39%) |
| OKLCH | oklch(43.4% 0.13 302.1) |
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 #5F3B8B | 8.45:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #5F3B8B | 2.48:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #5F3B8B text on white | 8.45:1 | AAA | Lc 88.8 | Fine for body text |
| #5F3B8B text on black | 2.48:1 | Fails | Lc -13.4 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DED3F1
oklch(88.5% 0.042 302.2)
-
Step 300
300
#C9B6EA
oklch(81% 0.075 301.4)
-
Step 400
400
#AF8EDF
oklch(70.8% 0.12 302.2)
-
Step 500
500
#9C6FD6
oklch(63.1% 0.155 302.4)
-
Step 600
600
#8755C3
oklch(55.6% 0.167 302.2)
-
Step 700
700
#7244A9
oklch(49% 0.157 301.9)
-
Step 800
800 (this color)
#5F3B8B
oklch(43.4% 0.13 302.1)
-
Step 900
900
#4C326D
oklch(37.7% 0.1 302.2)
-
Step 950
950
#2C1E40
oklch(27% 0.063 301.3)
#5F3B8B 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) | #1A4C8E | 0.098 |
| Deuteranopia (no green cones) | #284D89 | 0.089 |
| Tritanopia (no blue cones) | #564B5D | 0.098 |
| Achromatopsia (no color) | #4D4D4D | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F3B8B
#5F3B8B
oklch(43.4% 0.13 302.1)
- #475900
#475900
oklch(43.3% 0.105 122.2)
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 #5F3B8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.047
- Twilight #4E518B ΔE 0.061
- Dusk #4E5481 ΔE 0.075
- Light Eggplant #894585 ΔE 0.089
- Dusty Grape #545775 ΔE 0.092
- Cobalt #1E488F ΔE 0.094
Use #5F3B8B 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.