#50377B
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.112 298.1), rgb(80, 55, 123).
Aa
White text reads best on this color (9.66:1).
About this color
#50377B is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.112 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.66:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.17:1 |
| White text | 9.66:1 |
Values
| HEX | #50377B |
| RGB | rgb(80, 55, 123) |
| HSL | hsl(262, 38%, 35%) |
| OKLCH | oklch(40% 0.112 298.1) |
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 #50377B | 9.66:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #50377B | 2.17:1 | Fails | Lc 11.8 | Not readable |
| #50377B text on white | 9.66:1 | AAA | Lc 92.2 | Preferred for body text |
| #50377B text on black | 2.17:1 | Fails | Lc -10.3 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD3F5
oklch(88.5% 0.047 297.5)
-
Step 300
300
#C7B5F0
oklch(80.8% 0.084 298.5)
-
Step 400
400
#AB8DE9
oklch(70.7% 0.134 297.9)
-
Step 500
500
#986DE2
oklch(63.1% 0.172 298.3)
-
Step 600
600
#8352D0
oklch(55.6% 0.187 298)
-
Step 700
700
#6F41B4
oklch(49% 0.174 298.1)
-
Step 800
800
#5A3792
oklch(42.7% 0.144 297.7)
-
Step 900
900 (this color)
#50377B
oklch(40% 0.112 298.1)
-
Step 950
950
#2B1D44
oklch(27% 0.071 298)
#50377B 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) | #1C457D | 0.077 |
| Deuteranopia (no green cones) | #234479 | 0.071 |
| Tritanopia (no blue cones) | #474453 | 0.087 |
| Achromatopsia (no color) | #454545 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #50377B
#50377B
oklch(40% 0.112 298.1)
- #434E00
#434E00
oklch(40% 0.094 118.6)
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 #50377B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.051
- Rebecca Purple #663399 ΔE 0.064
- Twilight #4E518B ΔE 0.071
- Dusk #4E5481 ΔE 0.079
- Cobalt #1E488F ΔE 0.080
- Twilight Blue #0A437A ΔE 0.087
- Dusk Blue #26538D ΔE 0.089
Use #50377B 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.