#50378A
Closest named color: Dark Slate Blue (#483D8B). oklch(41.1% 0.132 293.6), rgb(80, 55, 138).
Aa
White text reads best on this color (9.31:1).
About this color
#50378A is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.132 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.019 away. White text reads best on it, at 9.31:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #50378A |
| RGB | rgb(80, 55, 138) |
| HSL | hsl(258, 43%, 38%) |
| OKLCH | oklch(41.1% 0.132 293.6) |
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 #50378A | 9.31:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #50378A | 2.25:1 | Fails | Lc 12.8 | Not readable |
| #50378A text on white | 9.31:1 | AAA | Lc 91.2 | Preferred for body text |
| #50378A text on black | 2.25:1 | Fails | Lc -11.2 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C2B8EF
oklch(81% 0.077 292.9)
-
Step 400
400
#A591E6
oklch(70.8% 0.123 293.8)
-
Step 500
500
#9073DF
oklch(63.2% 0.158 293.7)
-
Step 600
600
#7B59CC
oklch(55.6% 0.171 293.7)
-
Step 700
700
#6848B1
oklch(49.2% 0.16 293.7)
-
Step 800
800 (this color)
#50378A
oklch(41.1% 0.132 293.6)
-
Step 900
900
#453472
oklch(37.6% 0.103 293.5)
-
Step 950
950
#281F43
oklch(27% 0.065 293)
#50378A 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) | #01488D | 0.088 |
| Deuteranopia (no green cones) | #0E4588 | 0.083 |
| Tritanopia (no blue cones) | #41495B | 0.105 |
| Achromatopsia (no color) | #474747 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #50378A
#50378A
oklch(41.1% 0.132 293.6)
- #4B4F00
#4B4F00
oklch(41% 0.091 113.1)
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 #50378A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.019
- Blueberry #464196 ΔE 0.033
- Rebecca Purple #663399 ΔE 0.048
- Twilight #4E518B ΔE 0.068
- Cobalt #1E488F ΔE 0.075
- Dusk #4E5481 ΔE 0.082
- Chrysanthemum #560BAD ΔE 0.083
- Imperial Purple #480CA8 ΔE 0.084
Use #50378A 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.