#781C81
Closest named color: Purple (#800080). oklch(42.3% 0.172 324), rgb(120, 28, 129).
Aa
White text reads best on this color (9.20:1).
About this color
#781C81 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.172 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.026 away. White text reads best on it, at 9.20:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 2.28:1 |
| White text | 9.20:1 |
Values
| HEX | #781C81 |
| RGB | rgb(120, 28, 129) |
| HSL | hsl(295, 64%, 31%) |
| OKLCH | oklch(42.3% 0.172 324) |
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 #781C81 | 9.20:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #781C81 | 2.28:1 | Fails | Lc 13.9 | Not readable |
| #781C81 text on white | 9.20:1 | AAA | Lc 90.1 | Preferred for body text |
| #781C81 text on black | 2.28:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F4E4F5
oklch(93.7% 0.028 324)
-
Step 200
200
#ECCDEE
oklch(88.4% 0.056 324.1)
-
Step 300
300
#E1ABE5
oklch(80.9% 0.099 324.2)
-
Step 400
400
#D17AD8
oklch(70.7% 0.161 324.4)
-
Step 500
500
#C353CE
oklch(63.2% 0.205 324)
-
Step 600
600
#AE2FBB
oklch(55.6% 0.224 323.9)
-
Step 700
700
#951FA1
oklch(49.1% 0.208 323.8)
-
Step 800
800 (this color)
#781C81
oklch(42.3% 0.172 324)
-
Step 900
900
#622069
oklch(37.7% 0.135 323.8)
-
Step 950
950
#3A143D
oklch(27% 0.086 324.7)
#781C81 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) | #004184 | 0.178 |
| Deuteranopia (no green cones) | #2F4B7F | 0.153 |
| Tritanopia (no blue cones) | #7A2F4E | 0.100 |
| Achromatopsia (no color) | #484848 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #781C81
#781C81
oklch(42.3% 0.172 324)
- #005F0F
#005F0F
oklch(42.1% 0.136 144)
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 #781C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.026
- Dark Magenta #8B008B ΔE 0.044
- Rebecca Purple #663399 ΔE 0.063
- Warm Purple #952E8F ΔE 0.072
- Rich Purple #720058 ΔE 0.073
- Velvet #750851 ΔE 0.081
- Light Eggplant #894585 ΔE 0.090
- Red Violet #9E0168 ΔE 0.092
Use #781C81 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.