#491E73
Closest named color: Royal Purple (#4B006E). oklch(34.6% 0.138 302.8), rgb(73, 30, 115).
Aa
White text reads best on this color (12.23:1).
About this color
#491E73 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.138 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.040 away. White text reads best on it, at 12.23:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.71:1 |
| White text | 12.23:1 |
Values
| HEX | #491E73 |
| RGB | rgb(73, 30, 115) |
| HSL | hsl(270, 59%, 28%) |
| OKLCH | oklch(34.6% 0.138 302.8) |
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 #491E73 | 12.23:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #491E73 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #491E73 text on white | 12.23:1 | AAA | Lc 97.2 | Preferred for body text |
| #491E73 text on black | 1.71:1 | 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
#EEE5FB
oklch(93.5% 0.031 304.3)
-
Step 200
200
#E0D1F9
oklch(88.5% 0.057 302.3)
-
Step 300
300
#CEB0F8
oklch(80.8% 0.104 303.2)
-
Step 400
400
#B684F5
oklch(70.8% 0.166 302.8)
-
Step 500
500
#A55FF0
oklch(63.2% 0.211 303.1)
-
Step 600
600
#903EDF
oklch(55.6% 0.23 302.6)
-
Step 700
700
#7B2DC2
oklch(49.1% 0.215 302.7)
-
Step 800
800
#64289D
oklch(42.7% 0.178 302.8)
-
Step 900
900 (this color)
#491E73
oklch(34.6% 0.138 302.8)
-
Step 950
950
#2F1849
oklch(26.9% 0.088 302.5)
#491E73 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) | #003475 | 0.102 |
| Deuteranopia (no green cones) | #003571 | 0.103 |
| Tritanopia (no blue cones) | #403246 | 0.101 |
| Achromatopsia (no color) | #353535 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #491E73
#491E73
oklch(34.6% 0.138 302.8)
- #324000
#324000
oklch(34.6% 0.084 122.5)
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 #491E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.040
- Indigo #4B0082 ΔE 0.042
- Plum Purple #4E0550 ΔE 0.072
- Grape Purple #5D1451 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.079
- Deep Violet #490648 ΔE 0.084
- Imperial Purple #480CA8 ΔE 0.090
- Midnight Blue #191970 ΔE 0.094
Use #491E73 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.