#503F68
Closest named color: Dark Slate Blue (#483D8B). oklch(40.4% 0.07 302.5), rgb(80, 63, 104).
Aa
White text reads best on this color (9.32:1).
About this color
#503F68 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.070 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 0.062 away. White text reads best on it, at 9.32:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #503F68 |
| RGB | rgb(80, 63, 104) |
| HSL | hsl(265, 25%, 33%) |
| OKLCH | oklch(40.4% 0.07 302.5) |
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 #503F68 | 9.32:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #503F68 | 2.25:1 | Fails | Lc 12.5 | Not readable |
| #503F68 text on white | 9.32:1 | AAA | Lc 91.5 | Preferred for body text |
| #503F68 text on black | 2.25:1 | Fails | Lc -10.9 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F1
oklch(93.6% 0.012 301.3)
-
Step 200
200
#DCD6E6
oklch(88.6% 0.023 302.9)
-
Step 300
300
#C5BBD7
oklch(80.9% 0.04 301.7)
-
Step 400
400
#A897C3
oklch(70.6% 0.066 302.4)
-
Step 500
500
#937DB4
oklch(63.1% 0.084 302.4)
-
Step 600
600
#7E669F
oklch(55.6% 0.09 302.9)
-
Step 700
700
#6A5488
oklch(49% 0.085 302.9)
-
Step 800
800 (this color)
#503F68
oklch(40.4% 0.07 302.5)
-
Step 900
900
#473A5A
oklch(37.6% 0.056 302.5)
-
Step 950
950
#2A2235
oklch(27% 0.036 303.4)
#503F68 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) | #35466A | 0.045 |
| Deuteranopia (no green cones) | #394767 | 0.042 |
| Tritanopia (no blue cones) | #4C464E | 0.055 |
| Achromatopsia (no color) | #474747 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503F68
#503F68
oklch(40.4% 0.07 302.5)
- #424F21
#424F21
oklch(40.5% 0.071 122.7)
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 #503F68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.062
- Dusk #4E5481 ΔE 0.065
- Dark Grey Blue #29465B ΔE 0.068
- Twilight #4E518B ΔE 0.069
- Dusty Grape #545775 ΔE 0.070
- Purple Brown #673A3F ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.078
- Blueberry #464196 ΔE 0.078
Use #503F68 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.