#502F78
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.121 301.8), rgb(80, 47, 120).
Aa
White text reads best on this color (10.40:1).
About this color
#502F78 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.121 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.046 away. White text reads best on it, at 10.40:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.40:1 |
Values
| HEX | #502F78 |
| RGB | rgb(80, 47, 120) |
| HSL | hsl(267, 44%, 33%) |
| OKLCH | oklch(38.4% 0.121 301.8) |
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 #502F78 | 10.40:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #502F78 | 2.01:1 | Fails | Lc 10.1 | Not readable |
| #502F78 text on white | 10.40:1 | AAA | Lc 93.8 | Preferred for body text |
| #502F78 text on black | 2.01:1 | Fails | Lc -8.7 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#DFD2F6
oklch(88.5% 0.051 301.8)
-
Step 300
300
#CBB3F2
oklch(80.9% 0.091 301.8)
-
Step 400
400
#B189EB
oklch(70.7% 0.144 301.6)
-
Step 500
500
#9F67E5
oklch(63% 0.186 301.8)
-
Step 600
600
#8B4AD3
oklch(55.6% 0.202 302)
-
Step 700
700
#763AB7
oklch(49.1% 0.188 301.8)
-
Step 800
800
#603194
oklch(42.7% 0.156 301.9)
-
Step 900
900 (this color)
#502F78
oklch(38.4% 0.121 301.8)
-
Step 950
950
#2E1B45
oklch(27% 0.077 302.4)
#502F78 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) | #0C3F7A | 0.093 |
| Deuteranopia (no green cones) | #1B4076 | 0.085 |
| Tritanopia (no blue cones) | #483E4E | 0.092 |
| Achromatopsia (no color) | #404040 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #502F78
#502F78
oklch(38.4% 0.121 301.8)
- #3C4A00
#3C4A00
oklch(38.3% 0.092 121.2)
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 #502F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.046
- Blueberry #464196 ΔE 0.065
- Rebecca Purple #663399 ΔE 0.069
- Indigo #4B0082 ΔE 0.074
- Royal Purple #4B006E ΔE 0.079
- Grape Purple #5D1451 ΔE 0.084
- Twilight #4E518B ΔE 0.090
- Cobalt #1E488F ΔE 0.093
Use #502F78 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.