#421B52
Closest named color: Deep Violet (#490648). oklch(30.7% 0.102 314.8), rgb(66, 27, 82).
Aa
White text reads best on this color (13.90:1).
About this color
#421B52 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.102 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.039 away. White text reads best on it, at 13.90:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.51:1 |
| White text | 13.90:1 |
Values
| HEX | #421B52 |
| RGB | rgb(66, 27, 82) |
| HSL | hsl(283, 50%, 21%) |
| OKLCH | oklch(30.7% 0.102 314.8) |
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 #421B52 | 13.90:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #421B52 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #421B52 text on white | 13.90:1 | AAA | Lc 100.1 | Preferred for body text |
| #421B52 text on black | 1.51:1 | 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
#FAF2FD
oklch(97% 0.017 316.9)
-
Step 100
100
#F3E3FA
oklch(93.5% 0.035 315.7)
-
Step 200
200
#EACCF8
oklch(88.4% 0.067 315)
-
Step 300
300
#DEA9F6
oklch(81% 0.12 315)
-
Step 400
400
#CC75F2
oklch(70.6% 0.193 314.6)
-
Step 500
500
#BE46ED
oklch(63% 0.247 314.6)
-
Step 600
600
#AA0FDB
oklch(55.6% 0.268 314.7)
-
Step 700
700
#9100BB
oklch(49.1% 0.242 315)
-
Step 800
800
#77069A
oklch(42.8% 0.207 314.9)
-
Step 900
900
#60177A
oklch(37.7% 0.161 315.1)
-
Step 950
950 (this color)
#421B52
oklch(30.7% 0.102 314.8)
#421B52 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) | #082A54 | 0.095 |
| Deuteranopia (no green cones) | #1A2D51 | 0.082 |
| Tritanopia (no blue cones) | #412533 | 0.068 |
| Achromatopsia (no color) | #2C2C2C | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421B52
#421B52
oklch(30.7% 0.102 314.8)
- #1A3900
#1A3900
oklch(30.8% 0.09 134.7)
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 #421B52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.039
- Plum Purple #4E0550 ΔE 0.040
- Eggplant Purple #430541 ΔE 0.047
- Grape Purple #5D1451 ΔE 0.059
- Royal Purple #4B006E ΔE 0.062
- Dark Purple #35063E ΔE 0.063
- Aubergine #3D0734 ΔE 0.065
- Deep Purple #36013F ΔE 0.067
Use #421B52 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.