#503A94
Closest named color: Dark Slate Blue (#483D8B). oklch(42.3% 0.141 290.3), rgb(80, 58, 148).
Aa
White text reads best on this color (8.84:1).
About this color
#503A94 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.141 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.021 away. White text reads best on it, at 8.84:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.37:1 |
| White text | 8.84:1 |
Values
| HEX | #503A94 |
| RGB | rgb(80, 58, 148) |
| HSL | hsl(255, 44%, 40%) |
| OKLCH | oklch(42.3% 0.141 290.3) |
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 #503A94 | 8.84:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #503A94 | 2.37:1 | Fails | Lc 14.1 | Not readable |
| #503A94 text on white | 8.84:1 | AAA | Lc 89.9 | Fine for body text |
| #503A94 text on black | 2.37:1 | Fails | Lc -12.4 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7F9
oklch(93.5% 0.024 291)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#C0B8F3
oklch(81% 0.083 290.6)
-
Step 400
400
#A091ED
oklch(70.7% 0.133 290.1)
-
Step 500
500
#8B73E7
oklch(63.2% 0.169 290.2)
-
Step 600
600
#7658D5
oklch(55.6% 0.184 290.2)
-
Step 700
700
#6447B8
oklch(49.1% 0.17 290.6)
-
Step 800
800 (this color)
#503A94
oklch(42.3% 0.141 290.3)
-
Step 900
900
#433477
oklch(37.8% 0.11 290.5)
-
Step 950
950
#271F46
oklch(27.1% 0.07 290.3)
#503A94 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) | #004C97 | 0.085 |
| Deuteranopia (no green cones) | #004892 | 0.085 |
| Tritanopia (no blue cones) | #3C4E61 | 0.115 |
| Achromatopsia (no color) | #4A4A4A | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503A94
#503A94
oklch(42.3% 0.141 290.3)
- #515200
#515200
oklch(42.4% 0.093 110.6)
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 #503A94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.021
- Blueberry #464196 ΔE 0.022
- Rebecca Purple #663399 ΔE 0.043
- Twilight #4E518B ΔE 0.064
- Cobalt #1E488F ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.077
- Sapphire #2138AB ΔE 0.078
- Imperial Purple #480CA8 ΔE 0.080
Use #503A94 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.