#3F16A5
Closest named color: Imperial Purple (#480CA8). oklch(37.6% 0.202 284.1), rgb(63, 22, 165).
Aa
White text reads best on this color (11.23:1).
About this color
#3F16A5 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.202 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Imperial Purple (#480CA8), ΔE 0.019 away. White text reads best on it, at 11.23:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.202) |
| Temperature | cool |
| Nearest name | Imperial Purple (#480CA8) |
| Black text | 1.86:1 |
| White text | 11.23:1 |
Values
| HEX | #3F16A5 |
| RGB | rgb(63, 22, 165) |
| HSL | hsl(257, 76%, 37%) |
| OKLCH | oklch(37.6% 0.202 284.1) |
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 #3F16A5 | 11.23:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #3F16A5 | 1.86:1 | Fails | Lc 9.4 | Not readable |
| #3F16A5 text on white | 11.23:1 | AAA | Lc 94.5 | Preferred for body text |
| #3F16A5 text on black | 1.86:1 | Fails | Lc -8.1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FF
oklch(93.7% 0.031 283.8)
-
Step 200
200
#D4D5FF
oklch(88.6% 0.058 284.1)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9690FF
oklch(70.7% 0.159 284)
-
Step 500
500
#806FFF
oklch(63.2% 0.206 284.2)
-
Step 600
600
#6D45FF
oklch(55.6% 0.256 284.2)
-
Step 700
700
#6000F9
oklch(49.2% 0.289 284.2)
-
Step 800
800
#4E00CF
oklch(42.7% 0.251 284.1)
-
Step 900
900 (this color)
#3F16A5
oklch(37.6% 0.202 284.1)
-
Step 950
950
#241261
oklch(27% 0.129 284.2)
#3F16A5 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) | #003FA9 | 0.086 |
| Deuteranopia (no green cones) | #0036A3 | 0.076 |
| Tritanopia (no blue cones) | #004561 | 0.164 |
| Achromatopsia (no color) | #3B3B3B | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F16A5
#3F16A5
oklch(37.6% 0.202 284.1)
- #494300
#494300
oklch(37.7% 0.08 103.8)
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 #3F16A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Purple #480CA8 ΔE 0.019
- Indigo Blue #3A18B1 ΔE 0.023
- Chrysanthemum #560BAD ΔE 0.047
- Ultramarine #2000B1 ΔE 0.062
- Sapphire #2138AB ΔE 0.065
- Violet Blue #510AC9 ΔE 0.065
- Indigo #4B0082 ΔE 0.073
- Royal #0C1793 ΔE 0.081
Use #3F16A5 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.