#781BD5
Closest named color: Blue Violet (#8A2BE2). oklch(49% 0.247 298.5), rgb(120, 27, 213).
Aa
White text reads best on this color (7.20:1).
About this color
#781BD5 is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.247 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blue Violet (#8A2BE2), ΔE 0.046 away. White text reads best on it, at 7.20:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.247) |
| Temperature | in between |
| Nearest name | Blue Violet (#8A2BE2) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #781BD5 |
| RGB | rgb(120, 27, 213) |
| HSL | hsl(270, 78%, 47%) |
| OKLCH | oklch(49% 0.247 298.5) |
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 #781BD5 | 7.20:1 | AAA | Lc -88.3 | Fine for body text |
| Black text on #781BD5 | 2.91:1 | Fails | Lc 20.7 | Dividers and decoration only |
| #781BD5 text on white | 7.20:1 | AAA | Lc 83.3 | Fine for body text |
| #781BD5 text on black | 2.91:1 | Fails | Lc -18.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#ECE5FF
oklch(93.5% 0.036 298)
-
Step 200
200
#DED1FF
oklch(88.6% 0.064 298)
-
Step 300
300
#CAB1FF
oklch(81% 0.111 298.6)
-
Step 400
400
#B083FF
oklch(70.6% 0.179 298.5)
-
Step 500
500
#9F5CFF
oklch(63.2% 0.231 298.4)
-
Step 600
600
#8D2EF5
oklch(55.6% 0.266 298.4)
-
Step 700
700 (this color)
#781BD5
oklch(49% 0.247 298.5)
-
Step 800
800
#621DAC
oklch(42.7% 0.204 298.8)
-
Step 900
900
#4F2288
oklch(37.7% 0.159 298.5)
-
Step 950
950
#2E1650
oklch(27% 0.101 298.3)
#781BD5 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) | #0057DA | 0.153 |
| Deuteranopia (no green cones) | #0055D2 | 0.153 |
| Tritanopia (no blue cones) | #60567F | 0.182 |
| Achromatopsia (no color) | #575757 | 0.249 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #781BD5
#781BD5
oklch(49% 0.247 298.5)
- #5B6900
#5B6900
oklch(49.2% 0.115 118.5)
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 #781BD5, closest first.
No curated palette has a color within ΔE 0.04 of #781BD5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Violet #8A2BE2 ΔE 0.046
- Burple #6832E3 ΔE 0.047
- Grape #7209B7 ΔE 0.052
- Purple Blue #5D21D0 ΔE 0.053
- Purply Blue #661AEE ΔE 0.056
- Dark Violet #9400D3 ΔE 0.058
- Purpley Blue #5F34E7 ΔE 0.063
- Bluey Purple #6241C7 ΔE 0.064
Use #781BD5 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.