#431C71
Closest named color: Royal Purple (#4B006E). oklch(33.4% 0.138 299.8), rgb(67, 28, 113).
Aa
White text reads best on this color (12.77:1).
About this color
#431C71 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.138 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 0.038 away. White text reads best on it, at 12.77:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.64:1 |
| White text | 12.77:1 |
Values
| HEX | #431C71 |
| RGB | rgb(67, 28, 113) |
| HSL | hsl(268, 60%, 28%) |
| OKLCH | oklch(33.4% 0.138 299.8) |
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 #431C71 | 12.77:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #431C71 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #431C71 text on white | 12.77:1 | AAA | Lc 98.2 | Preferred for body text |
| #431C71 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
#F7F4FE
oklch(97.2% 0.014 299.8)
-
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
#CAB2FA
oklch(80.9% 0.103 299.4)
-
Step 400
400
#B186F7
oklch(70.8% 0.164 299.8)
-
Step 500
500
#9F61F3
oklch(63% 0.211 299.9)
-
Step 600
600
#8B41E2
oklch(55.6% 0.229 299.8)
-
Step 700
700
#7631C4
oklch(49.1% 0.212 299.8)
-
Step 800
800
#602B9F
oklch(42.8% 0.176 299.7)
-
Step 900
900 (this color)
#431C71
oklch(33.4% 0.138 299.8)
-
Step 950
950
#2E194A
oklch(27% 0.088 300.4)
#431C71 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) | #003273 | 0.094 |
| Deuteranopia (no green cones) | #00326F | 0.095 |
| Tritanopia (no blue cones) | #383144 | 0.103 |
| Achromatopsia (no color) | #323232 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #431C71
#431C71
oklch(33.4% 0.138 299.8)
- #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 #431C71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.038
- Indigo #4B0082 ΔE 0.042
- Plum Purple #4E0550 ΔE 0.071
- Midnight Blue #191970 ΔE 0.081
- Deep Violet #490648 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.082
- Dark Slate Blue #483D8B ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.093
Use #431C71 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.