#3E2573
Closest named color: Indigo (#4B0082). oklch(34.3% 0.127 293.3), rgb(62, 37, 115).
Aa
White text reads best on this color (12.23:1).
About this color
#3E2573 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.127 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.057 away. White text reads best on it, at 12.23:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.71:1 |
| White text | 12.23:1 |
Values
| HEX | #3E2573 |
| RGB | rgb(62, 37, 115) |
| HSL | hsl(259, 51%, 30%) |
| OKLCH | oklch(34.3% 0.127 293.3) |
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 #3E2573 | 12.23:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #3E2573 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #3E2573 text on white | 12.23:1 | AAA | Lc 97.4 | Preferred for body text |
| #3E2573 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DAD3FA
oklch(88.5% 0.054 293.5)
-
Step 300
300
#C3B5F9
oklch(80.9% 0.096 293.6)
-
Step 400
400
#A68CF6
oklch(70.8% 0.152 293.4)
-
Step 500
500
#926BF2
oklch(63.2% 0.194 293.4)
-
Step 600
600
#7D4DE1
oklch(55.5% 0.213 293.1)
-
Step 700
700
#6A3DC3
oklch(49.1% 0.197 293.2)
-
Step 800
800
#56339E
oklch(42.6% 0.164 293.2)
-
Step 900
900 (this color)
#3E2573
oklch(34.3% 0.127 293.3)
-
Step 950
950
#291C49
oklch(26.9% 0.08 293.6)
#3E2573 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) | #003675 | 0.078 |
| Deuteranopia (no green cones) | #003471 | 0.078 |
| Tritanopia (no blue cones) | #2F3748 | 0.100 |
| Achromatopsia (no color) | #353535 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E2573
#3E2573
oklch(34.3% 0.127 293.3)
- #393D00
#393D00
oklch(34.4% 0.077 113.9)
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 #3E2573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.057
- Royal Purple #4B006E ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.073
- Midnight Blue #191970 ΔE 0.075
- Marine Blue #01386A ΔE 0.084
- Prussian Blue #1D3557 ΔE 0.084
- Marine #042E60 ΔE 0.085
- Plum Purple #4E0550 ΔE 0.086
Use #3E2573 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.