#504689
Closest named color: Dark Slate Blue (#483D8B). oklch(43.8% 0.107 288), rgb(80, 70, 137).
Aa
White text reads best on this color (8.14:1).
About this color
#504689 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.107 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 8.14:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.57:1 |
| White text | 8.14:1 |
Values
| HEX | #504689 |
| RGB | rgb(80, 70, 137) |
| HSL | hsl(249, 32%, 41%) |
| OKLCH | oklch(43.8% 0.107 288) |
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 #504689 | 8.14:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #504689 | 2.57:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #504689 text on white | 8.14:1 | AAA | Lc 88.0 | Fine for body text |
| #504689 text on black | 2.57:1 | Fails | Lc -14.1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BEBBE8
oklch(81% 0.063 288)
-
Step 400
400
#9D97DC
oklch(70.8% 0.1 287.5)
-
Step 500
500
#867BD2
oklch(63% 0.129 287.9)
-
Step 600
600
#7163BF
oklch(55.6% 0.139 288)
-
Step 700
700
#5F51A5
oklch(49.1% 0.13 288.3)
-
Step 800
800 (this color)
#504689
oklch(43.8% 0.107 288)
-
Step 900
900
#40396B
oklch(37.7% 0.084 288.1)
-
Step 950
950
#25223F
oklch(27.1% 0.053 287)
#504689 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) | #2C518B | 0.053 |
| Deuteranopia (no green cones) | #2C4E87 | 0.052 |
| Tritanopia (no blue cones) | #405461 | 0.091 |
| Achromatopsia (no color) | #4F4F4F | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504689
#504689
oklch(43.8% 0.107 288)
- #575500
#575500
oklch(43.7% 0.094 108.2)
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 #504689, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Twilight #4E518B ΔE 0.030
- Blueberry #464196 ΔE 0.032
- Dusk #4E5481 ΔE 0.044
- Dusk Blue #26538D ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.061
- Rebecca Purple #663399 ΔE 0.064
- Cobalt #1E488F ΔE 0.064
Use #504689 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.