#321555
Closest named color: Dark Indigo (#1F0954). oklch(27.8% 0.11 300), rgb(50, 21, 85).
Aa
White text reads best on this color (15.28:1).
About this color
#321555 is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.110 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.050 away. White text reads best on it, at 15.28:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.37:1 |
| White text | 15.28:1 |
Values
| HEX | #321555 |
| RGB | rgb(50, 21, 85) |
| HSL | hsl(267, 60%, 21%) |
| OKLCH | oklch(27.8% 0.11 300) |
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 #321555 | 15.28:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #321555 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #321555 text on white | 15.28:1 | AAA | Lc 101.8 | Preferred for body text |
| #321555 text on black | 1.37:1 | 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
#EDE5FF
oklch(93.6% 0.036 299.7)
-
Step 200
200
#DFD0FF
oklch(88.5% 0.066 299.6)
-
Step 300
300
#CCB0FF
oklch(80.9% 0.113 300.2)
-
Step 400
400
#B382FF
oklch(70.7% 0.18 299.9)
-
Step 500
500
#A259FF
oklch(63.1% 0.235 299.8)
-
Step 600
600
#9313FE
oklch(55.6% 0.289 299.9)
-
Step 700
700
#7D00DA
oklch(49.1% 0.262 300.1)
-
Step 800
800
#6609B3
oklch(42.7% 0.223 299.9)
-
Step 900
900
#521A8D
oklch(37.6% 0.173 299.8)
-
Step 950
950 (this color)
#321555
oklch(27.8% 0.11 300)
#321555 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) | #002557 | 0.077 |
| Deuteranopia (no green cones) | #002554 | 0.077 |
| Tritanopia (no blue cones) | #2A2433 | 0.081 |
| Achromatopsia (no color) | #252525 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #321555
#321555
oklch(27.8% 0.11 300)
- #242D00
#242D00
oklch(27.9% 0.067 120.8)
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 #321555, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.050
- Dark Purple #35063E ΔE 0.051
- Deep Purple #36013F ΔE 0.055
- Eggplant Purple #430541 ΔE 0.058
- Deep Violet #490648 ΔE 0.061
- Eggplant #380835 ΔE 0.065
- Plum Purple #4E0550 ΔE 0.066
- Midnight Blue #191970 ΔE 0.069
Use #321555 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.