#491C6F
Closest named color: Royal Purple (#4B006E). oklch(34% 0.136 304.9), rgb(73, 28, 111).
Aa
White text reads best on this color (12.50:1).
About this color
#491C6F is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.136 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 0.035 away. White text reads best on it, at 12.50:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.67:1 |
| White text | 12.50:1 |
Values
| HEX | #491C6F |
| RGB | rgb(73, 28, 111) |
| HSL | hsl(273, 60%, 27%) |
| OKLCH | oklch(34% 0.136 304.9) |
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 #491C6F | 12.50:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #491C6F | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #491C6F text on white | 12.50:1 | AAA | Lc 97.7 | Preferred for body text |
| #491C6F text on black | 1.67:1 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E2D0F8
oklch(88.5% 0.057 305.6)
-
Step 300
300
#D0B0F6
oklch(80.9% 0.102 305.1)
-
Step 400
400
#B883F2
oklch(70.7% 0.164 304.6)
-
Step 500
500
#A85EED
oklch(63.2% 0.21 305)
-
Step 600
600
#933DDB
oklch(55.5% 0.228 304.7)
-
Step 700
700
#7E2DBE
oklch(49.1% 0.212 305)
-
Step 800
800
#66289A
oklch(42.7% 0.176 304.7)
-
Step 900
900 (this color)
#491C6F
oklch(34% 0.136 304.9)
-
Step 950
950
#301848
oklch(26.9% 0.087 304.2)
#491C6F 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) | #003371 | 0.105 |
| Deuteranopia (no green cones) | #00346D | 0.106 |
| Tritanopia (no blue cones) | #423043 | 0.099 |
| Achromatopsia (no color) | #343434 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #491C6F
#491C6F
oklch(34% 0.136 304.9)
- #2E3F00
#2E3F00
oklch(34% 0.085 124.9)
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 #491C6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.035
- Indigo #4B0082 ΔE 0.044
- Plum Purple #4E0550 ΔE 0.064
- Grape Purple #5D1451 ΔE 0.070
- Deep Violet #490648 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.086
- Eggplant Purple #430541 ΔE 0.090
- Midnight Blue #191970 ΔE 0.094
Use #491C6F 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.