#50397B
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.108 297.4), rgb(80, 57, 123).
Aa
White text reads best on this color (9.49:1).
About this color
#50397B is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.108 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.030 away. White text reads best on it, at 9.49:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #50397B |
| RGB | rgb(80, 57, 123) |
| HSL | hsl(261, 37%, 35%) |
| OKLCH | oklch(40.3% 0.108 297.4) |
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 #50397B | 9.49:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #50397B | 2.21:1 | Fails | Lc 12.2 | Not readable |
| #50397B text on white | 9.49:1 | AAA | Lc 91.8 | Preferred for body text |
| #50397B text on black | 2.21:1 | Fails | Lc -10.6 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE8F5
oklch(93.7% 0.018 296.6)
-
Step 200
200
#DBD5EE
oklch(88.5% 0.035 296.7)
-
Step 300
300
#C5B9E5
oklch(81% 0.063 297.5)
-
Step 400
400
#A793D8
oklch(70.7% 0.101 297.1)
-
Step 500
500
#9377CE
oklch(63.2% 0.13 297.4)
-
Step 600
600
#7E5EBA
oklch(55.6% 0.14 297.7)
-
Step 700
700
#6A4DA1
oklch(49.1% 0.131 297.3)
-
Step 800
800 (this color)
#50397B
oklch(40.3% 0.108 297.4)
-
Step 900
900
#473668
oklch(37.6% 0.085 297.9)
-
Step 950
950
#29203D
oklch(26.9% 0.054 296.9)
#50397B 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) | #20467D | 0.072 |
| Deuteranopia (no green cones) | #264579 | 0.067 |
| Tritanopia (no blue cones) | #474654 | 0.086 |
| Achromatopsia (no color) | #464646 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #50397B
#50397B
oklch(40.3% 0.108 297.4)
- #454F00
#454F00
oklch(40.4% 0.094 117.8)
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 #50397B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.030
- Blueberry #464196 ΔE 0.049
- Rebecca Purple #663399 ΔE 0.065
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.074
- Cobalt #1E488F ΔE 0.078
- Twilight Blue #0A437A ΔE 0.085
- Dusk Blue #26538D ΔE 0.085
Use #50397B 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.