#3B175E
Closest named color: Royal Purple (#4B006E). oklch(30.1% 0.12 302.9), rgb(59, 23, 94).
Aa
White text reads best on this color (14.28:1).
About this color
#3B175E is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.120 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.049 away. White text reads best on it, at 14.28:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.47:1 |
| White text | 14.28:1 |
Values
| HEX | #3B175E |
| RGB | rgb(59, 23, 94) |
| HSL | hsl(270, 61%, 23%) |
| OKLCH | oklch(30.1% 0.12 302.9) |
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 #3B175E | 14.28:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #3B175E | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #3B175E text on white | 14.28:1 | AAA | Lc 100.5 | Preferred for body text |
| #3B175E text on black | 1.47:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EFE4FF
oklch(93.6% 0.038 304.1)
-
Step 200
200
#E2CFFF
oklch(88.5% 0.068 303.1)
-
Step 300
300
#D0AEFF
oklch(80.9% 0.117 303.1)
-
Step 400
400
#B97EFF
oklch(70.7% 0.188 303)
-
Step 500
500
#A953FF
oklch(63.1% 0.243 302.9)
-
Step 600
600
#9900FA
oklch(55.5% 0.292 302.9)
-
Step 700
700
#8100D4
oklch(49% 0.258 302.9)
-
Step 800
800
#6A00B0
oklch(42.7% 0.224 302.8)
-
Step 900
900
#580B91
oklch(37.7% 0.189 303)
-
Step 950
950 (this color)
#3B175E
oklch(30.1% 0.12 302.9)
#3B175E 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) | #002A60 | 0.089 |
| Deuteranopia (no green cones) | #002A5D | 0.089 |
| Tritanopia (no blue cones) | #342838 | 0.089 |
| Achromatopsia (no color) | #2A2A2A | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B175E
#3B175E
oklch(30.1% 0.12 302.9)
- #273400
#273400
oklch(30.2% 0.075 123.5)
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 #3B175E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.049
- Plum Purple #4E0550 ΔE 0.054
- Deep Violet #490648 ΔE 0.056
- Eggplant Purple #430541 ΔE 0.062
- Dark Purple #35063E ΔE 0.067
- Deep Purple #36013F ΔE 0.070
- Indigo #4B0082 ΔE 0.071
- Dark Indigo #1F0954 ΔE 0.072
Use #3B175E 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.