#505366
Closest named color: Dusty Grape (#545775). oklch(44.7% 0.031 278), rgb(80, 83, 102).
Aa
White text reads best on this color (7.58:1).
About this color
#505366 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.031 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.026 away. White text reads best on it, at 7.58:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.77:1 |
| White text | 7.58:1 |
Values
| HEX | #505366 |
| RGB | rgb(80, 83, 102) |
| HSL | hsl(232, 12%, 36%) |
| OKLCH | oklch(44.7% 0.031 278) |
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 #505366 | 7.58:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #505366 | 2.77:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #505366 text on white | 7.58:1 | AAA | Lc 86.4 | Fine for body text |
| #505366 text on black | 2.77:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D7D9E0
oklch(88.6% 0.01 273.3)
-
Step 300
300
#BDC0CD
oklch(80.9% 0.018 275.6)
-
Step 400
400
#9C9FB3
oklch(70.7% 0.029 278.9)
-
Step 500
500
#8488A0
oklch(63.2% 0.036 277.8)
-
Step 600
600
#6D718B
oklch(55.5% 0.041 278.1)
-
Step 700
700
#5B5F76
oklch(49.1% 0.037 277.2)
-
Step 800
800 (this color)
#505366
oklch(44.7% 0.031 278)
-
Step 900
900
#3E414F
oklch(37.8% 0.024 275.7)
-
Step 950
950
#24262E
oklch(27% 0.015 274.3)
#505366 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) | #4E5567 | 0.006 |
| Deuteranopia (no green cones) | #4D5366 | 0.005 |
| Tritanopia (no blue cones) | #4B5659 | 0.028 |
| Achromatopsia (no color) | #545454 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505366
#505366
oklch(44.7% 0.031 278)
- #595541
#595541
oklch(44.7% 0.031 98)
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 #505366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.026
- YInMn Blue #415A77 ΔE 0.034
- Dusk #4E5481 ΔE 0.044
- Slate #516572 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.063
- Twilight #4E518B ΔE 0.064
- Light Navy Blue #2E5A88 ΔE 0.065
- Denim #3B638C ΔE 0.069
Use #505366 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.