#431C64
Closest named color: Royal Purple (#4B006E). oklch(32.3% 0.122 305.4), rgb(67, 28, 100).
Aa
White text reads best on this color (13.21:1).
About this color
#431C64 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.122 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.041 away. White text reads best on it, at 13.21:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.58:1 |
| White text | 13.21:1 |
Values
| HEX | #431C64 |
| RGB | rgb(67, 28, 100) |
| HSL | hsl(273, 56%, 25%) |
| OKLCH | oklch(32.3% 0.122 305.4) |
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 #431C64 | 13.21:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #431C64 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #431C64 text on white | 13.21:1 | AAA | Lc 99.0 | Preferred for body text |
| #431C64 text on black | 1.58:1 | 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
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#F0E4FF
oklch(93.6% 0.038 305.7)
-
Step 200
200
#E4CEFF
oklch(88.5% 0.07 305.4)
-
Step 300
300
#D3ACFF
oklch(80.8% 0.121 305.4)
-
Step 400
400
#BE7BFF
oklch(70.7% 0.193 305.4)
-
Step 500
500
#AF4DFF
oklch(63.1% 0.252 305.4)
-
Step 600
600
#9D00F4
oklch(55.5% 0.288 305.3)
-
Step 700
700
#8500CF
oklch(49.1% 0.254 305.5)
-
Step 800
800
#6D00AC
oklch(42.7% 0.221 305.2)
-
Step 900
900
#5B0390
oklch(37.7% 0.193 305.3)
-
Step 950
950 (this color)
#431C64
oklch(32.3% 0.122 305.4)
#431C64 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) | #002F66 | 0.097 |
| Deuteranopia (no green cones) | #053062 | 0.096 |
| Tritanopia (no blue cones) | #3D2C3D | 0.088 |
| Achromatopsia (no color) | #303030 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #431C64
#431C64
oklch(32.3% 0.122 305.4)
- #2A3A00
#2A3A00
oklch(32.2% 0.081 125)
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 #431C64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.041
- Plum Purple #4E0550 ΔE 0.053
- Indigo #4B0082 ΔE 0.060
- Deep Violet #490648 ΔE 0.061
- Grape Purple #5D1451 ΔE 0.067
- Eggplant Purple #430541 ΔE 0.072
- Midnight Blue #191970 ΔE 0.085
- Dark Purple #35063E ΔE 0.086
Use #431C64 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.