#421F64
Closest named color: Royal Purple (#4B006E). oklch(32.6% 0.117 303.9), rgb(66, 31, 100).
Aa
White text reads best on this color (13.03:1).
About this color
#421F64 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.117 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.047 away. White text reads best on it, at 13.03:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.61:1 |
| White text | 13.03:1 |
Values
| HEX | #421F64 |
| RGB | rgb(66, 31, 100) |
| HSL | hsl(270, 53%, 26%) |
| OKLCH | oklch(32.6% 0.117 303.9) |
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 #421F64 | 13.03:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #421F64 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #421F64 text on white | 13.03:1 | AAA | Lc 98.8 | Preferred for body text |
| #421F64 text on black | 1.61:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F8
oklch(93.6% 0.025 303.5)
-
Step 200
200
#E0D2F4
oklch(88.6% 0.048 304.1)
-
Step 300
300
#CDB3EF
oklch(80.9% 0.087 304.3)
-
Step 400
400
#B489E8
oklch(70.8% 0.141 303.9)
-
Step 500
500
#A268E0
oklch(63.2% 0.179 304)
-
Step 600
600
#8D4BCE
oklch(55.6% 0.196 303.8)
-
Step 700
700
#783BB2
oklch(49.1% 0.182 303.9)
-
Step 800
800
#623290
oklch(42.7% 0.15 304.2)
-
Step 900
900 (this color)
#421F64
oklch(32.6% 0.117 303.9)
-
Step 950
950
#2E1B43
oklch(26.9% 0.074 303.8)
#421F64 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) | #003066 | 0.093 |
| Deuteranopia (no green cones) | #093162 | 0.089 |
| Tritanopia (no blue cones) | #3C2E3E | 0.086 |
| Achromatopsia (no color) | #313131 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #421F64
#421F64
oklch(32.6% 0.117 303.9)
- #2C3B00
#2C3B00
oklch(32.7% 0.081 124)
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 #421F64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.047
- Plum Purple #4E0550 ΔE 0.058
- Indigo #4B0082 ΔE 0.063
- Deep Violet #490648 ΔE 0.065
- Grape Purple #5D1451 ΔE 0.069
- Eggplant Purple #430541 ΔE 0.075
- Midnight Blue #191970 ΔE 0.084
- Prussian Blue #1D3557 ΔE 0.086
Use #421F64 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.