#504B85
Closest named color: Twilight (#4E518B). oklch(44.5% 0.093 285.9), rgb(80, 75, 133).
Aa
White text reads best on this color (7.81:1).
About this color
#504B85 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.093 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.018 away. White text reads best on it, at 7.81:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.68:1 |
| White text | 7.81:1 |
Values
| HEX | #504B85 |
| RGB | rgb(80, 75, 133) |
| HSL | hsl(245, 28%, 41%) |
| OKLCH | oklch(44.5% 0.093 285.9) |
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 #504B85 | 7.81:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #504B85 | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #504B85 text on white | 7.81:1 | AAA | Lc 87.0 | Fine for body text |
| #504B85 text on black | 2.68:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D7D7ED
oklch(88.6% 0.03 285.8)
-
Step 300
300
#BDBCE3
oklch(80.9% 0.055 286.3)
-
Step 400
400
#9B99D5
oklch(70.7% 0.087 285.5)
-
Step 500
500
#847FCA
oklch(63.2% 0.111 285.8)
-
Step 600
600
#6E67B7
oklch(55.7% 0.122 285.7)
-
Step 700
700
#5C559D
oklch(49.1% 0.113 285.9)
-
Step 800
800 (this color)
#504B85
oklch(44.5% 0.093 285.9)
-
Step 900
900
#3E3B66
oklch(37.6% 0.072 285.5)
-
Step 950
950
#24233C
oklch(27% 0.046 284.7)
#504B85 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) | #375487 | 0.040 |
| Deuteranopia (no green cones) | #365084 | 0.038 |
| Tritanopia (no blue cones) | #415661 | 0.080 |
| Achromatopsia (no color) | #525252 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504B85
#504B85
oklch(44.5% 0.093 285.9)
- #5B5603
#5B5603
oklch(44.4% 0.093 105.7)
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 #504B85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.018
- Dusk #4E5481 ΔE 0.028
- Dark Slate Blue #483D8B ΔE 0.044
- Blueberry #464196 ΔE 0.046
- Dusty Grape #545775 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.050
- Dusk Blue #26538D ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.056
Use #504B85 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.