#504187
Closest named color: Dark Slate Blue (#483D8B). oklch(42.7% 0.113 290.7), rgb(80, 65, 135).
Aa
White text reads best on this color (8.58:1).
About this color
#504187 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.113 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.020 away. White text reads best on it, at 8.58:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #504187 |
| RGB | rgb(80, 65, 135) |
| HSL | hsl(253, 35%, 39%) |
| OKLCH | oklch(42.7% 0.113 290.7) |
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 #504187 | 8.58:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #504187 | 2.44:1 | Fails | Lc 14.7 | Not readable |
| #504187 text on white | 8.58:1 | AAA | Lc 89.3 | Fine for body text |
| #504187 text on black | 2.44:1 | Fails | Lc -12.9 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D5F0
oklch(88.4% 0.037 290.7)
-
Step 300
300
#C0BAE9
oklch(81% 0.066 290.7)
-
Step 400
400
#A095DD
oklch(70.7% 0.104 290.5)
-
Step 500
500
#8A79D4
oklch(63.1% 0.134 290.6)
-
Step 600
600
#7560C1
oklch(55.6% 0.146 290.8)
-
Step 700
700
#624FA7
oklch(49.1% 0.136 290.4)
-
Step 800
800 (this color)
#504187
oklch(42.7% 0.113 290.7)
-
Step 900
900
#42386C
oklch(37.7% 0.087 290.5)
-
Step 950
950
#27213F
oklch(27% 0.055 291.5)
#504187 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) | #254D89 | 0.062 |
| Deuteranopia (no green cones) | #264B85 | 0.061 |
| Tritanopia (no blue cones) | #414F5D | 0.093 |
| Achromatopsia (no color) | #4C4C4C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504187
#504187
oklch(42.7% 0.113 290.7)
- #525300
#525300
oklch(42.7% 0.094 110.6)
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 #504187, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.020
- Blueberry #464196 ΔE 0.030
- Twilight #4E518B ΔE 0.043
- Dusk #4E5481 ΔE 0.056
- Rebecca Purple #663399 ΔE 0.058
- Cobalt #1E488F ΔE 0.066
- Dusk Blue #26538D ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.073
Use #504187 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.