#524C81
Closest named color: Twilight (#4E518B). oklch(44.7% 0.086 287.6), rgb(82, 76, 129).
Aa
White text reads best on this color (7.75:1).
About this color
#524C81 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.086 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.020 away. White text reads best on it, at 7.75:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #524C81 |
| RGB | rgb(82, 76, 129) |
| HSL | hsl(247, 26%, 40%) |
| OKLCH | oklch(44.7% 0.086 287.6) |
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 #524C81 | 7.75:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #524C81 | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #524C81 text on white | 7.75:1 | AAA | Lc 86.8 | Fine for body text |
| #524C81 text on black | 2.70:1 | Fails | Lc -15.3 | 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
#E9E9F3
oklch(93.7% 0.013 286.1)
-
Step 200
200
#D7D7EB
oklch(88.5% 0.027 285.8)
-
Step 300
300
#BEBCE0
oklch(80.9% 0.05 287.8)
-
Step 400
400
#9D99D0
oklch(70.6% 0.08 287.5)
-
Step 500
500
#867FC4
oklch(63.1% 0.103 287.7)
-
Step 600
600
#7068B0
oklch(55.6% 0.11 287.4)
-
Step 700
700
#5E5698
oklch(49.1% 0.104 287.5)
-
Step 800
800 (this color)
#524C81
oklch(44.7% 0.086 287.6)
-
Step 900
900
#403B63
oklch(37.6% 0.068 288.4)
-
Step 950
950
#25233A
oklch(27% 0.042 287.2)
#524C81 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) | #3B5483 | 0.037 |
| Deuteranopia (no green cones) | #3B5180 | 0.035 |
| Tritanopia (no blue cones) | #465660 | 0.073 |
| Achromatopsia (no color) | #535353 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #524C81
#524C81
oklch(44.7% 0.086 287.6)
- #595715
#595715
oklch(44.5% 0.085 107.7)
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 #524C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.020
- Dusk #4E5481 ΔE 0.023
- Dusty Grape #545775 ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.053
- Blueberry #464196 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.056
Use #524C81 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.