#78378B
Closest named color: Rebecca Purple (#663399). oklch(45.9% 0.145 318), rgb(120, 55, 139).
Aa
White text reads best on this color (7.72:1).
About this color
#78378B is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.145 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.046 away. White text reads best on it, at 7.72:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.71:1 |
| White text | 7.72:1 |
Values
| HEX | #78378B |
| RGB | rgb(120, 55, 139) |
| HSL | hsl(286, 43%, 38%) |
| OKLCH | oklch(45.9% 0.145 318) |
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 #78378B | 7.72:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #78378B | 2.71:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #78378B text on white | 7.72:1 | AAA | Lc 86.3 | Fine for body text |
| #78378B text on black | 2.71:1 | Fails | Lc -15.7 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E4D2EA
oklch(88.6% 0.038 317.7)
-
Step 300
300
#D4B3DE
oklch(80.9% 0.069 318.3)
-
Step 400
400
#BE8ACE
oklch(70.8% 0.112 318.1)
-
Step 500
500
#AD6BC1
oklch(63.2% 0.143 318)
-
Step 600
600
#9850AD
oklch(55.5% 0.156 318.1)
-
Step 700
700 (this color)
#78378B
oklch(45.9% 0.145 318)
-
Step 800
800
#693679
oklch(42.7% 0.12 317.6)
-
Step 900
900
#562F61
oklch(37.6% 0.094 318.5)
-
Step 950
950
#321C39
oklch(26.9% 0.06 317.7)
#78378B 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) | #224E8E | 0.136 |
| Deuteranopia (no green cones) | #3A5589 | 0.120 |
| Tritanopia (no blue cones) | #78455B | 0.094 |
| Achromatopsia (no color) | #535353 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78378B
#78378B
oklch(45.9% 0.145 318)
- #286900
#286900
oklch(46% 0.142 138)
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 #78378B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.046
- Light Eggplant #894585 ΔE 0.052
- Warm Purple #952E8F ΔE 0.058
- Purple #800080 ΔE 0.069
- Dark Magenta #8B008B ΔE 0.069
- Purply #983FB2 ΔE 0.087
- Dark Slate Blue #483D8B ΔE 0.089
- Twilight #4E518B ΔE 0.092
Use #78378B 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.