#391B58
Closest named color: Deep Violet (#490648). oklch(29.9% 0.106 303.1), rgb(57, 27, 88).
Aa
White text reads best on this color (14.26:1).
About this color
#391B58 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.106 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.055 away. White text reads best on it, at 14.26:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.47:1 |
| White text | 14.26:1 |
Values
| HEX | #391B58 |
| RGB | rgb(57, 27, 88) |
| HSL | hsl(270, 53%, 23%) |
| OKLCH | oklch(29.9% 0.106 303.1) |
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 #391B58 | 14.26:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #391B58 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #391B58 text on white | 14.26:1 | AAA | Lc 100.6 | Preferred for body text |
| #391B58 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
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#EEE4FE
oklch(93.5% 0.036 303.1)
-
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
#AA52FF
oklch(63.1% 0.245 303.3)
-
Step 600
600
#981AF4
oklch(55.6% 0.279 303.2)
-
Step 700
700
#8200D4
oklch(49.2% 0.258 303.3)
-
Step 800
800
#690EAC
oklch(42.7% 0.215 303)
-
Step 900
900
#551B88
oklch(37.7% 0.168 303)
-
Step 950
950 (this color)
#391B58
oklch(29.9% 0.106 303.1)
#391B58 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) | #002A5A | 0.083 |
| Deuteranopia (no green cones) | #072A57 | 0.079 |
| Tritanopia (no blue cones) | #332836 | 0.078 |
| Achromatopsia (no color) | #2A2A2A | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #391B58
#391B58
oklch(29.9% 0.106 303.1)
- #273300
#273300
oklch(29.9% 0.073 122.8)
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 #391B58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.055
- Plum Purple #4E0550 ΔE 0.056
- Eggplant Purple #430541 ΔE 0.059
- Royal Purple #4B006E ΔE 0.061
- Dark Purple #35063E ΔE 0.063
- Deep Purple #36013F ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.071
- Eggplant #380835 ΔE 0.072
Use #391B58 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.