#5F337D
Closest named color: Rebecca Purple (#663399). oklch(41.2% 0.125 309.4), rgb(95, 51, 125).
Aa
White text reads best on this color (9.30:1).
About this color
#5F337D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.125 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.048 away. White text reads best on it, at 9.30:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #5F337D |
| RGB | rgb(95, 51, 125) |
| HSL | hsl(276, 42%, 35%) |
| OKLCH | oklch(41.2% 0.125 309.4) |
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 #5F337D | 9.30:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #5F337D | 2.25:1 | Fails | Lc 12.8 | Not readable |
| #5F337D text on white | 9.30:1 | AAA | Lc 91.1 | Preferred for body text |
| #5F337D text on black | 2.25:1 | Fails | Lc -11.2 | 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
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E1D2EE
oklch(88.4% 0.041 309.4)
-
Step 300
300
#CFB4E5
oklch(80.9% 0.074 309.6)
-
Step 400
400
#B68CD8
oklch(70.8% 0.117 309)
-
Step 500
500
#A46DCD
oklch(63.1% 0.149 309.2)
-
Step 600
600
#8F52BA
oklch(55.5% 0.164 309.1)
-
Step 700
700
#7A42A0
oklch(49% 0.152 309.4)
-
Step 800
800 (this color)
#5F337D
oklch(41.2% 0.125 309.4)
-
Step 900
900
#513168
oklch(37.8% 0.097 309.4)
-
Step 950
950
#2F1D3D
oklch(27% 0.062 308.8)
#5F337D 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) | #1A457F | 0.106 |
| Deuteranopia (no green cones) | #2B487B | 0.094 |
| Tritanopia (no blue cones) | #5B4153 | 0.088 |
| Achromatopsia (no color) | #474747 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F337D
#5F337D
oklch(41.2% 0.125 309.4)
- #375600
#375600
oklch(41.3% 0.11 129.6)
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 #5F337D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.051
- Blueberry #464196 ΔE 0.065
- Twilight #4E518B ΔE 0.080
- Purple #800080 ΔE 0.086
- Dusk #4E5481 ΔE 0.089
- Grape Purple #5D1451 ΔE 0.091
- Indigo #4B0082 ΔE 0.093
Use #5F337D 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.