#503A75
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.098 299.1), rgb(80, 58, 117).
Aa
White text reads best on this color (9.53:1).
About this color
#503A75 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.098 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 9.53:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.53:1 |
Values
| HEX | #503A75 |
| RGB | rgb(80, 58, 117) |
| HSL | hsl(262, 34%, 34%) |
| OKLCH | oklch(40.1% 0.098 299.1) |
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 #503A75 | 9.53:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #503A75 | 2.20:1 | Fails | Lc 12.1 | Not readable |
| #503A75 text on white | 9.53:1 | AAA | Lc 91.9 | Preferred for body text |
| #503A75 text on black | 2.20:1 | Fails | Lc -10.5 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DCD4F1
oklch(88.5% 0.04 298.2)
-
Step 300
300
#C7B7EA
oklch(81% 0.073 299.1)
-
Step 400
400
#AB8FE0
oklch(70.6% 0.119 299.2)
-
Step 500
500
#9772D7
oklch(63.2% 0.15 298.9)
-
Step 600
600
#8258C4
oklch(55.6% 0.163 299)
-
Step 700
700
#6E47A9
oklch(49.1% 0.152 299.1)
-
Step 800
800
#5A3B89
oklch(42.7% 0.126 299.4)
-
Step 900
900 (this color)
#503A75
oklch(40.1% 0.098 299.1)
-
Step 950
950
#2B1F40
oklch(27.1% 0.061 299.1)
#503A75 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) | #274577 | 0.064 |
| Deuteranopia (no green cones) | #2C4574 | 0.060 |
| Tritanopia (no blue cones) | #484552 | 0.076 |
| Achromatopsia (no color) | #454545 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503A75
#503A75
oklch(40.1% 0.098 299.1)
- #434F00
#434F00
oklch(40.3% 0.095 119.2)
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 #503A75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.057
- Twilight #4E518B ΔE 0.067
- Dusk #4E5481 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.074
- Cobalt #1E488F ΔE 0.081
- Twilight Blue #0A437A ΔE 0.084
- Dusty Grape #545775 ΔE 0.085
Use #503A75 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.