#421D70
Closest named color: Royal Purple (#4B006E). oklch(33.4% 0.135 299.3), rgb(66, 29, 112).
Aa
White text reads best on this color (12.79:1).
About this color
#421D70 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.135 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.040 away. White text reads best on it, at 12.79:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.64:1 |
| White text | 12.79:1 |
Values
| HEX | #421D70 |
| RGB | rgb(66, 29, 112) |
| HSL | hsl(267, 59%, 28%) |
| OKLCH | oklch(33.4% 0.135 299.3) |
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 #421D70 | 12.79:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #421D70 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #421D70 text on white | 12.79:1 | AAA | Lc 98.3 | Preferred for body text |
| #421D70 text on black | 1.64:1 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DED2FA
oklch(88.6% 0.056 299)
-
Step 300
300
#CAB2F9
oklch(80.9% 0.101 299.6)
-
Step 400
400
#B087F6
oklch(70.8% 0.161 299.3)
-
Step 500
500
#9E63F2
oklch(63.1% 0.207 299.4)
-
Step 600
600
#8A43E1
oklch(55.6% 0.226 299.4)
-
Step 700
700
#7533C3
oklch(49.1% 0.209 299.3)
-
Step 800
800
#5F2C9E
oklch(42.7% 0.174 299.3)
-
Step 900
900 (this color)
#421D70
oklch(33.4% 0.135 299.3)
-
Step 950
950
#2D1A49
oklch(27% 0.084 299.3)
#421D70 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) | #003272 | 0.092 |
| Deuteranopia (no green cones) | #00316E | 0.092 |
| Tritanopia (no blue cones) | #373144 | 0.101 |
| Achromatopsia (no color) | #323232 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421D70
#421D70
oklch(33.4% 0.135 299.3)
- #323C00
#323C00
oklch(33.5% 0.079 119.6)
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 #421D70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.040
- Indigo #4B0082 ΔE 0.045
- Plum Purple #4E0550 ΔE 0.071
- Midnight Blue #191970 ΔE 0.079
- Deep Violet #490648 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.082
- Dark Slate Blue #483D8B ΔE 0.087
- Eggplant Purple #430541 ΔE 0.092
Use #421D70 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.