#504381
Closest named color: Dark Slate Blue (#483D8B). oklch(42.7% 0.1 291.2), rgb(80, 67, 129).
Aa
White text reads best on this color (8.53:1).
About this color
#504381 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.100 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 8.53:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.46:1 |
| White text | 8.53:1 |
Values
| HEX | #504381 |
| RGB | rgb(80, 67, 129) |
| HSL | hsl(253, 32%, 38%) |
| OKLCH | oklch(42.7% 0.1 291.2) |
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 #504381 | 8.53:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #504381 | 2.46:1 | Fails | Lc 14.8 | Not readable |
| #504381 text on white | 8.53:1 | AAA | Lc 89.2 | Fine for body text |
| #504381 text on black | 2.46:1 | Fails | Lc -13.0 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D9D6EE
oklch(88.6% 0.033 291.5)
-
Step 300
300
#C0BBE4
oklch(81% 0.058 290.6)
-
Step 400
400
#A196D7
oklch(70.7% 0.094 291.6)
-
Step 500
500
#8A7BCC
oklch(63% 0.12 291.1)
-
Step 600
600
#7563B9
oklch(55.6% 0.13 291.2)
-
Step 700
700
#62529F
oklch(49.1% 0.12 290.9)
-
Step 800
800 (this color)
#504381
oklch(42.7% 0.1 291.2)
-
Step 900
900
#423968
oklch(37.7% 0.079 290.9)
-
Step 950
950
#27223D
oklch(27.1% 0.049 291.2)
#504381 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) | #2D4D83 | 0.053 |
| Deuteranopia (no green cones) | #2E4B80 | 0.051 |
| Tritanopia (no blue cones) | #444F5C | 0.082 |
| Achromatopsia (no color) | #4C4C4C | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504381
#504381
oklch(42.7% 0.1 291.2)
- #515300
#515300
oklch(42.6% 0.094 111.4)
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 #504381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Twilight #4E518B ΔE 0.039
- Blueberry #464196 ΔE 0.040
- Dusk #4E5481 ΔE 0.048
- Dusk Blue #26538D ΔE 0.065
- Dusty Grape #545775 ΔE 0.067
- Cobalt #1E488F ΔE 0.067
- Rebecca Purple #663399 ΔE 0.067
Use #504381 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.