#421D51
Closest named color: Deep Violet (#490648). oklch(30.9% 0.097 315.1), rgb(66, 29, 81).
Aa
White text reads best on this color (13.75:1).
About this color
#421D51 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.097 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 0.042 away. White text reads best on it, at 13.75:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.52:1 |
| White text | 13.75:1 |
Values
| HEX | #421D51 |
| RGB | rgb(66, 29, 81) |
| HSL | hsl(283, 47%, 22%) |
| OKLCH | oklch(30.9% 0.097 315.1) |
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 #421D51 | 13.75:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #421D51 | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #421D51 text on white | 13.75:1 | AAA | Lc 100.0 | Preferred for body text |
| #421D51 text on black | 1.52:1 | 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
#F9F3FD
oklch(97.2% 0.015 312.2)
-
Step 100
100
#F3E4FA
oklch(93.7% 0.033 315.2)
-
Step 200
200
#E9CDF7
oklch(88.5% 0.064 314.5)
-
Step 300
300
#DDAAF4
oklch(81% 0.115 315.1)
-
Step 400
400
#CB78EE
oklch(70.8% 0.184 315.1)
-
Step 500
500
#BD4CE8
oklch(63.2% 0.235 315.2)
-
Step 600
600
#A81FD6
oklch(55.5% 0.256 315)
-
Step 700
700
#9008B9
oklch(49% 0.237 315.1)
-
Step 800
800
#751296
oklch(42.7% 0.197 315)
-
Step 900
900
#5F1B78
oklch(37.8% 0.154 315.1)
-
Step 950
950 (this color)
#421D51
oklch(30.9% 0.097 315.1)
#421D51 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) | #0E2B53 | 0.089 |
| Deuteranopia (no green cones) | #1C2E50 | 0.078 |
| Tritanopia (no blue cones) | #412634 | 0.064 |
| Achromatopsia (no color) | #2D2D2D | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421D51
#421D51
oklch(30.9% 0.097 315.1)
- #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 #421D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.042
- Plum Purple #4E0550 ΔE 0.044
- Eggplant Purple #430541 ΔE 0.050
- Grape Purple #5D1451 ΔE 0.059
- Dark Purple #35063E ΔE 0.065
- Aubergine #3D0734 ΔE 0.066
- Royal Purple #4B006E ΔE 0.066
- Eggplant #380835 ΔE 0.069
Use #421D51 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.