#421C6F
Closest named color: Royal Purple (#4B006E). oklch(33.1% 0.135 299.9), rgb(66, 28, 111).
Aa
White text reads best on this color (12.90:1).
About this color
#421C6F is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.135 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.039 away. White text reads best on it, at 12.90:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.62:1 |
| White text | 12.90:1 |
Values
| HEX | #421C6F |
| RGB | rgb(66, 28, 111) |
| HSL | hsl(267, 60%, 27%) |
| OKLCH | oklch(33.1% 0.135 299.9) |
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 #421C6F | 12.90:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #421C6F | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #421C6F text on white | 12.90:1 | AAA | Lc 98.5 | Preferred for body text |
| #421C6F text on black | 1.62:1 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DED1FA
oklch(88.4% 0.057 299.7)
-
Step 300
300
#CAB2F9
oklch(80.9% 0.101 299.6)
-
Step 400
400
#B186F6
oklch(70.7% 0.163 300)
-
Step 500
500
#9F62F1
oklch(63% 0.207 300.2)
-
Step 600
600
#8B43E0
oklch(55.7% 0.225 300)
-
Step 700
700
#7633C3
oklch(49.2% 0.209 299.8)
-
Step 800
800
#602C9D
oklch(42.7% 0.173 300.1)
-
Step 900
900 (this color)
#421C6F
oklch(33.1% 0.135 299.9)
-
Step 950
950
#2D1A49
oklch(27% 0.084 299.3)
#421C6F 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) | #003171 | 0.093 |
| Deuteranopia (no green cones) | #00316D | 0.094 |
| Tritanopia (no blue cones) | #383043 | 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°).
- #421C6F
#421C6F
oklch(33.1% 0.135 299.9)
- #313B00
#313B00
oklch(33.1% 0.078 119.8)
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 #421C6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.039
- Indigo #4B0082 ΔE 0.045
- Plum Purple #4E0550 ΔE 0.069
- Deep Violet #490648 ΔE 0.078
- Midnight Blue #191970 ΔE 0.079
- Grape Purple #5D1451 ΔE 0.081
- Dark Slate Blue #483D8B ΔE 0.089
- Eggplant Purple #430541 ΔE 0.090
Use #421C6F 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.