#503D6E
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.083 300.6), rgb(80, 61, 110).
Aa
White text reads best on this color (9.40:1).
About this color
#503D6E is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.083 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.051 away. White text reads best on it, at 9.40:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #503D6E |
| RGB | rgb(80, 61, 110) |
| HSL | hsl(263, 29%, 34%) |
| OKLCH | oklch(40.3% 0.083 300.6) |
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 #503D6E | 9.40:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #503D6E | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #503D6E text on white | 9.40:1 | AAA | Lc 91.6 | Preferred for body text |
| #503D6E text on black | 2.23:1 | Fails | Lc -10.7 | 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 800.
-
Step 50
50
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DCD5E9
oklch(88.5% 0.028 301.7)
-
Step 300
300
#C5BADC
oklch(80.9% 0.049 300.1)
-
Step 400
400
#A896CA
oklch(70.7% 0.077 300.3)
-
Step 500
500
#937BBC
oklch(63% 0.099 300.6)
-
Step 600
600
#7E63A8
oklch(55.5% 0.108 301)
-
Step 700
700
#6A5290
oklch(49% 0.1 300.6)
-
Step 800
800 (this color)
#503D6E
oklch(40.3% 0.083 300.6)
-
Step 900
900
#47395F
oklch(37.7% 0.065 300.2)
-
Step 950
950
#2A2237
oklch(27.1% 0.04 301.3)
#503D6E 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) | #304670 | 0.053 |
| Deuteranopia (no green cones) | #34466D | 0.049 |
| Tritanopia (no blue cones) | #4A4550 | 0.064 |
| Achromatopsia (no color) | #464646 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503D6E
#503D6E
oklch(40.3% 0.083 300.6)
- #424F14
#424F14
oklch(40.3% 0.083 121)
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 #503D6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.066
- Blueberry #464196 ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.075
- Dusty Grape #545775 ΔE 0.075
- YInMn Blue #415A77 ΔE 0.084
- Twilight Blue #0A437A ΔE 0.084
Use #503D6E 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.