#5F317D
Closest named color: Rebecca Purple (#663399). oklch(40.9% 0.128 309.8), rgb(95, 49, 125).
Aa
White text reads best on this color (9.45:1).
About this color
#5F317D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.128 and its hue 310°. 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 9.45:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.22:1 |
| White text | 9.45:1 |
Values
| HEX | #5F317D |
| RGB | rgb(95, 49, 125) |
| HSL | hsl(276, 44%, 34%) |
| OKLCH | oklch(40.9% 0.128 309.8) |
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 #5F317D | 9.45:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #5F317D | 2.22:1 | Fails | Lc 12.5 | Not readable |
| #5F317D text on white | 9.45:1 | AAA | Lc 91.4 | Preferred for body text |
| #5F317D text on black | 2.22:1 | Fails | Lc -10.9 | 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
#CFB4E6
oklch(80.9% 0.075 309.2)
-
Step 400
400
#B78BD9
oklch(70.7% 0.12 309.5)
-
Step 500
500
#A66CCE
oklch(63.2% 0.153 310)
-
Step 600
600
#9151BB
oklch(55.6% 0.167 309.9)
-
Step 700
700
#7B41A1
oklch(49.1% 0.155 309.7)
-
Step 800
800 (this color)
#5F317D
oklch(40.9% 0.128 309.8)
-
Step 900
900
#523069
oklch(37.8% 0.1 310)
-
Step 950
950
#301D3D
oklch(27.1% 0.062 310.2)
#5F317D 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) | #15447F | 0.111 |
| Deuteranopia (no green cones) | #29477B | 0.098 |
| Tritanopia (no blue cones) | #5B3F52 | 0.089 |
| Achromatopsia (no color) | #464646 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F317D
#5F317D
oklch(40.9% 0.128 309.8)
- #365500
#365500
oklch(40.9% 0.11 129.7)
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 #5F317D, 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 0.053
- Blueberry #464196 ΔE 0.067
- Purple #800080 ΔE 0.083
- Twilight #4E518B ΔE 0.084
- Grape Purple #5D1451 ΔE 0.088
- Indigo #4B0082 ΔE 0.089
- Rich Purple #720058 ΔE 0.092
Use #5F317D 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.