#3A3159
Closest named color: Prussian Blue (#1D3557). oklch(34.2% 0.069 292.7), rgb(58, 49, 89).
Aa
White text reads best on this color (11.90:1).
About this color
#3A3159 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.069 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.044 away. White text reads best on it, at 11.90:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.76:1 |
| White text | 11.90:1 |
Values
| HEX | #3A3159 |
| RGB | rgb(58, 49, 89) |
| HSL | hsl(253, 29%, 27%) |
| OKLCH | oklch(34.2% 0.069 292.7) |
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 #3A3159 | 11.90:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #3A3159 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #3A3159 text on white | 11.90:1 | AAA | Lc 97.2 | Preferred for body text |
| #3A3159 text on black | 1.76:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#D9D6EB
oklch(88.5% 0.029 292.4)
-
Step 300
300
#C1BBE0
oklch(80.9% 0.052 292.6)
-
Step 400
400
#A297D0
oklch(70.7% 0.083 293)
-
Step 500
500
#8C7DC4
oklch(63.2% 0.106 292.8)
-
Step 600
600
#7665B0
oklch(55.6% 0.115 292.7)
-
Step 700
700
#635498
oklch(49.2% 0.107 292.2)
-
Step 800
800
#51457B
oklch(42.8% 0.088 292.5)
-
Step 900
900 (this color)
#3A3159
oklch(34.2% 0.069 292.7)
-
Step 950
950
#27223A
oklch(26.9% 0.044 292.7)
#3A3159 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) | #25385B | 0.036 |
| Deuteranopia (no green cones) | #263658 | 0.034 |
| Tritanopia (no blue cones) | #333840 | 0.057 |
| Achromatopsia (no color) | #373737 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A3159
#3A3159
oklch(34.2% 0.069 292.7)
- #393C09
#393C09
oklch(34.2% 0.069 112.9)
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 #3A3159, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.050
- Gunmetal #293241 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.057
- Onyx #343A40 ΔE 0.060
- Marine Blue #01386A ΔE 0.066
- Dark Grey Blue #29465B ΔE 0.067
- Marine #042E60 ΔE 0.070
Use #3A3159 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.