#502778
Closest named color: Indigo (#4B0082). oklch(37.2% 0.133 303.8), rgb(80, 39, 120).
Aa
White text reads best on this color (11.03:1).
About this color
#502778 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.133 and its hue 304°. 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 11.03:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.90:1 |
| White text | 11.03:1 |
Values
| HEX | #502778 |
| RGB | rgb(80, 39, 120) |
| HSL | hsl(270, 51%, 31%) |
| OKLCH | oklch(37.2% 0.133 303.8) |
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 #502778 | 11.03:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #502778 | 1.90:1 | Fails | Lc 8.9 | Not readable |
| #502778 text on white | 11.03:1 | AAA | Lc 95.0 | Preferred for body text |
| #502778 text on black | 1.90:1 | Fails | Lc -7.6 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE6FA
oklch(93.7% 0.028 303.9)
-
Step 200
200
#E1D1F8
oklch(88.6% 0.056 303.9)
-
Step 300
300
#CEB1F6
oklch(80.9% 0.1 303.5)
-
Step 400
400
#B684F1
oklch(70.6% 0.161 303.7)
-
Step 500
500
#A560EC
oklch(63.1% 0.205 303.8)
-
Step 600
600
#9141DA
oklch(55.7% 0.222 303.8)
-
Step 700
700
#7B31BD
oklch(49.1% 0.206 303.6)
-
Step 800
800
#642A99
oklch(42.6% 0.172 303.7)
-
Step 900
900 (this color)
#502778
oklch(37.2% 0.133 303.8)
-
Step 950
950
#301947
oklch(27% 0.084 304.4)
#502778 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) | #003B7A | 0.105 |
| Deuteranopia (no green cones) | #0D3C76 | 0.101 |
| Tritanopia (no blue cones) | #48394C | 0.098 |
| Achromatopsia (no color) | #3C3C3C | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #502778
#502778
oklch(37.2% 0.133 303.8)
- #364800
#364800
oklch(37.2% 0.093 124.3)
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 #502778, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.059
- Royal Purple #4B006E ΔE 0.061
- Rebecca Purple #663399 ΔE 0.074
- Blueberry #464196 ΔE 0.077
- Grape Purple #5D1451 ΔE 0.078
- Plum Purple #4E0550 ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.089
Use #502778 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.