#3B2873
Closest named color: Indigo (#4B0082). oklch(34.5% 0.123 290.1), rgb(59, 40, 115).
Aa
White text reads best on this color (12.08:1).
About this color
#3B2873 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.123 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.064 away. White text reads best on it, at 12.08:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.73:1 |
| White text | 12.08:1 |
Values
| HEX | #3B2873 |
| RGB | rgb(59, 40, 115) |
| HSL | hsl(255, 48%, 30%) |
| OKLCH | oklch(34.5% 0.123 290.1) |
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 #3B2873 | 12.08:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #3B2873 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #3B2873 text on white | 12.08:1 | AAA | Lc 97.2 | Preferred for body text |
| #3B2873 text on black | 1.73:1 | 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 900.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4F9
oklch(88.5% 0.051 290.3)
-
Step 300
300
#BFB7F9
oklch(80.9% 0.093 289.7)
-
Step 400
400
#A08EF5
oklch(70.6% 0.148 290.1)
-
Step 500
500
#8B6EF1
oklch(63% 0.189 290.1)
-
Step 600
600
#7752E0
oklch(55.6% 0.205 290.1)
-
Step 700
700
#6441C2
oklch(49% 0.191 290)
-
Step 800
800
#52379D
oklch(42.7% 0.157 290.3)
-
Step 900
900 (this color)
#3B2873
oklch(34.5% 0.123 290.1)
-
Step 950
950
#271E49
oklch(27.1% 0.077 289.9)
#3B2873 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) | #003775 | 0.071 |
| Deuteranopia (no green cones) | #003471 | 0.070 |
| Tritanopia (no blue cones) | #293A49 | 0.101 |
| Achromatopsia (no color) | #363636 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B2873
#3B2873
oklch(34.5% 0.123 290.1)
- #3C3C00
#3C3C00
oklch(34.5% 0.075 109.8)
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 #3B2873, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.064
- Royal Purple #4B006E ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.070
- Midnight Blue #191970 ΔE 0.073
- Marine Blue #01386A ΔE 0.076
- Prussian Blue #1D3557 ΔE 0.077
- Marine #042E60 ΔE 0.079
- Twilight Blue #0A437A ΔE 0.083
Use #3B2873 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.