#504D87
Closest named color: Twilight (#4E518B). oklch(45.1% 0.093 284.3), rgb(80, 77, 135).
Aa
White text reads best on this color (7.62:1).
About this color
#504D87 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.093 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.012 away. White text reads best on it, at 7.62:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #504D87 |
| RGB | rgb(80, 77, 135) |
| HSL | hsl(243, 27%, 42%) |
| OKLCH | oklch(45.1% 0.093 284.3) |
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 #504D87 | 7.62:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #504D87 | 2.75:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #504D87 text on white | 7.62:1 | AAA | Lc 86.4 | Fine for body text |
| #504D87 text on black | 2.75:1 | Fails | Lc -15.7 | 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
#D6D7ED
oklch(88.5% 0.03 283.7)
-
Step 300
300
#BCBCE3
oklch(80.8% 0.055 285.1)
-
Step 400
400
#9A99D5
oklch(70.6% 0.087 284.7)
-
Step 500
500
#827FCA
oklch(63% 0.111 284.5)
-
Step 600
600
#6C67B7
oklch(55.5% 0.122 284.5)
-
Step 700
700
#5A569E
oklch(49.1% 0.113 284)
-
Step 800
800 (this color)
#504D87
oklch(45.1% 0.093 284.3)
-
Step 900
900
#3D3B67
oklch(37.6% 0.074 284.3)
-
Step 950
950
#24233C
oklch(27% 0.046 284.7)
#504D87 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) | #395589 | 0.036 |
| Deuteranopia (no green cones) | #375286 | 0.036 |
| Tritanopia (no blue cones) | #405863 | 0.080 |
| Achromatopsia (no color) | #545454 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504D87
#504D87
oklch(45.1% 0.093 284.3)
- #5E5705
#5E5705
oklch(44.9% 0.093 104)
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 #504D87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.012
- Dusk #4E5481 ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.045
- Dusty Grape #545775 ΔE 0.048
- Blueberry #464196 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.048
- Dusky Blue #475F94 ΔE 0.051
- Dusk Blue #26538D ΔE 0.052
Use #504D87 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.