#504E9B
Closest named color: Twilight (#4E518B). oklch(46.5% 0.122 281.7), rgb(80, 78, 155).
Aa
White text reads best on this color (7.23:1).
About this color
#504E9B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.122 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.029 away. White text reads best on it, at 7.23:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #504E9B |
| RGB | rgb(80, 78, 155) |
| HSL | hsl(242, 33%, 46%) |
| OKLCH | oklch(46.5% 0.122 281.7) |
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 #504E9B | 7.23:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #504E9B | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #504E9B text on white | 7.23:1 | AAA | Lc 84.9 | Fine for body text |
| #504E9B text on black | 2.90:1 | Fails | Lc -17.1 | 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 700.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EF
oklch(88.5% 0.033 281.9)
-
Step 300
300
#BABDE7
oklch(81% 0.059 281.8)
-
Step 400
400
#979ADA
oklch(70.8% 0.093 281.7)
-
Step 500
500
#7E7FD0
oklch(63% 0.121 281.8)
-
Step 600
600
#6867BD
oklch(55.5% 0.131 281.8)
-
Step 700
700 (this color)
#504E9B
oklch(46.5% 0.122 281.7)
-
Step 800
800
#474684
oklch(42.6% 0.101 282)
-
Step 900
900
#3B3B6A
oklch(37.6% 0.079 281.9)
-
Step 950
950
#23233E
oklch(27% 0.05 282.6)
#504E9B 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) | #2C5A9E | 0.050 |
| Deuteranopia (no green cones) | #275499 | 0.050 |
| Tritanopia (no blue cones) | #365E6D | 0.104 |
| Achromatopsia (no color) | #575757 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504E9B
#504E9B
oklch(46.5% 0.122 281.7)
- #655B00
#655B00
oklch(46.6% 0.098 102)
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 #504E9B, closest first.
No curated palette has a color within ΔE 0.04 of #504E9B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.029
- Blueberry #464196 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.048
- Dusk #4E5481 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.052
- Dusk Blue #26538D ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.064
Use #504E9B 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.