#503F67
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.069 303), rgb(80, 63, 103).
Aa
White text reads best on this color (9.34:1).
About this color
#503F67 is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.064 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #503F67 |
| RGB | rgb(80, 63, 103) |
| HSL | hsl(266, 24%, 33%) |
| OKLCH | oklch(40.3% 0.069 303) |
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 #503F67 | 9.34:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #503F67 | 2.24:1 | Fails | Lc 12.4 | Not readable |
| #503F67 text on white | 9.34:1 | AAA | Lc 91.5 | Preferred for body text |
| #503F67 text on black | 2.24:1 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EBE8F0
oklch(93.6% 0.011 303.1)
-
Step 200
200
#DCD6E6
oklch(88.6% 0.023 302.9)
-
Step 300
300
#C5BBD6
oklch(80.9% 0.039 302.4)
-
Step 400
400
#A897C2
oklch(70.6% 0.064 302.8)
-
Step 500
500
#937DB3
oklch(63% 0.083 302.8)
-
Step 600
600
#7E669E
oklch(55.6% 0.089 303.3)
-
Step 700
700
#6A5587
oklch(49.1% 0.082 302.8)
-
Step 800
800 (this color)
#503F67
oklch(40.3% 0.069 303)
-
Step 900
900
#473B59
oklch(37.8% 0.052 302.3)
-
Step 950
950
#2A2234
oklch(26.9% 0.035 304.5)
#503F67 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) | #364669 | 0.044 |
| Deuteranopia (no green cones) | #394766 | 0.042 |
| Tritanopia (no blue cones) | #4C454E | 0.052 |
| Achromatopsia (no color) | #474747 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503F67
#503F67
oklch(40.3% 0.069 303)
- #424F22
#424F22
oklch(40.5% 0.069 122.9)
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 #503F67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.064
- Dusk #4E5481 ΔE 0.066
- Dark Grey Blue #29465B ΔE 0.067
- Twilight #4E518B ΔE 0.070
- Dusty Grape #545775 ΔE 0.070
- Charcoal Grey #3C4142 ΔE 0.076
- Purple Brown #673A3F ΔE 0.076
- Charcoal #264653 ΔE 0.078
Use #503F67 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.