#503B72
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.092 299.9), rgb(80, 59, 114).
Aa
White text reads best on this color (9.50:1).
About this color
#503B72 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.092 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.044 away. White text reads best on it, at 9.50:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.50:1 |
Values
| HEX | #503B72 |
| RGB | rgb(80, 59, 114) |
| HSL | hsl(263, 32%, 34%) |
| OKLCH | oklch(40.1% 0.092 299.9) |
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 #503B72 | 9.50:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #503B72 | 2.20:1 | Fails | Lc 12.1 | Not readable |
| #503B72 text on white | 9.50:1 | AAA | Lc 91.9 | Preferred for body text |
| #503B72 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
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C7B7E7
oklch(80.9% 0.069 300.1)
-
Step 400
400
#AB90DB
oklch(70.6% 0.111 300.1)
-
Step 500
500
#9773D2
oklch(63.1% 0.142 299.8)
-
Step 600
600
#825ABF
oklch(55.7% 0.154 299.7)
-
Step 700
700
#6E49A4
oklch(49% 0.142 299.9)
-
Step 800
800
#5A3D85
oklch(42.8% 0.117 300.1)
-
Step 900
900 (this color)
#503B72
oklch(40.1% 0.092 299.9)
-
Step 950
950
#2B1F3F
oklch(27% 0.059 299.7)
#503B72 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) | #2B4574 | 0.060 |
| Deuteranopia (no green cones) | #2F4571 | 0.056 |
| Tritanopia (no blue cones) | #494551 | 0.072 |
| Achromatopsia (no color) | #464646 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503B72
#503B72
oklch(40.1% 0.092 299.9)
- #424F05
#424F05
oklch(40.2% 0.093 120.1)
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 #503B72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.044
- Blueberry #464196 ΔE 0.062
- Twilight #4E518B ΔE 0.067
- Dusk #4E5481 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.079
- Dusty Grape #545775 ΔE 0.081
- Dark Grey Blue #29465B ΔE 0.081
- Cobalt #1E488F ΔE 0.082
Use #503B72 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.