#3A2F6E
Closest named color: Prussian Blue (#1D3557). oklch(35.3% 0.105 287.8), rgb(58, 47, 110).
Aa
White text reads best on this color (11.59:1).
About this color
#3A2F6E is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.105 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.063 away. White text reads best on it, at 11.59:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.81:1 |
| White text | 11.59:1 |
Values
| HEX | #3A2F6E |
| RGB | rgb(58, 47, 110) |
| HSL | hsl(250, 40%, 31%) |
| OKLCH | oklch(35.3% 0.105 287.8) |
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 #3A2F6E | 11.59:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #3A2F6E | 1.81:1 | Fails | Lc 7.4 | Not readable |
| #3A2F6E text on white | 11.59:1 | AAA | Lc 96.4 | Preferred for body text |
| #3A2F6E text on black | 1.81:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F5
oklch(88.5% 0.044 288.3)
-
Step 300
300
#BDB9F1
oklch(80.8% 0.079 287.8)
-
Step 400
400
#9D93EA
oklch(70.7% 0.125 288)
-
Step 500
500
#8676E4
oklch(63.1% 0.161 287.6)
-
Step 600
600
#715CD2
oklch(55.6% 0.175 287.5)
-
Step 700
700
#5F4AB6
oklch(49% 0.164 287.7)
-
Step 800
800
#4E3E93
oklch(42.8% 0.134 288)
-
Step 900
900 (this color)
#3A2F6E
oklch(35.3% 0.105 287.8)
-
Step 950
950
#252045
oklch(27% 0.067 287.2)
#3A2F6E 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) | #0E3A70 | 0.057 |
| Deuteranopia (no green cones) | #0E376D | 0.056 |
| Tritanopia (no blue cones) | #2A3D49 | 0.089 |
| Achromatopsia (no color) | #393939 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A2F6E
#3A2F6E
oklch(35.3% 0.105 287.8)
- #403E00
#403E00
oklch(35.4% 0.076 107.7)
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 #3A2F6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.063
- Marine Blue #01386A ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.065
- Twilight Blue #0A437A ΔE 0.070
- Marine #042E60 ΔE 0.072
- Midnight Blue #191970 ΔE 0.082
- Blueberry #464196 ΔE 0.082
- Royal Purple #4B006E ΔE 0.082
Use #3A2F6E 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.