#505D83
Closest named color: Dusty Grape (#545775). oklch(48.3% 0.064 269.4), rgb(80, 93, 131).
Aa
White text reads best on this color (6.49:1).
About this color
#505D83 is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.064 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.025 away. White text reads best on it, at 6.49:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.23:1 |
| White text | 6.49:1 |
Values
| HEX | #505D83 |
| RGB | rgb(80, 93, 131) |
| HSL | hsl(225, 24%, 41%) |
| OKLCH | oklch(48.3% 0.064 269.4) |
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 #505D83 | 6.49:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #505D83 | 3.23:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #505D83 text on white | 6.49:1 | AA | Lc 82.2 | Fine for body text |
| #505D83 text on black | 3.23:1 | AA large text | Lc -19.7 | 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 700.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E5
oklch(88.5% 0.017 267.8)
-
Step 300
300
#B8C0D5
oklch(80.8% 0.031 269.1)
-
Step 400
400
#94A0C0
oklch(70.7% 0.049 269)
-
Step 500
500
#7A88B0
oklch(63% 0.063 269.6)
-
Step 600
600
#63729C
oklch(55.7% 0.068 269)
-
Step 700
700 (this color)
#505D83
oklch(48.3% 0.064 269.4)
-
Step 800
800
#434E6C
oklch(42.7% 0.052 268.6)
-
Step 900
900
#394158
oklch(37.8% 0.041 269.5)
-
Step 950
950
#212633
oklch(27% 0.025 268.3)
#505D83 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) | #506085 | 0.009 |
| Deuteranopia (no green cones) | #4C5C82 | 0.007 |
| Tritanopia (no blue cones) | #40656A | 0.058 |
| Achromatopsia (no color) | #5E5E5E | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505D83
#505D83
oklch(48.3% 0.064 269.4)
- #6D5D32
#6D5D32
oklch(48.4% 0.064 89.5)
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 #505D83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.025
- Dusk #4E5481 ΔE 0.027
- Dusky Blue #475F94 ΔE 0.028
- Denim #3B638C ΔE 0.030
- YInMn Blue #415A77 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.037
- Twilight #4E518B ΔE 0.041
- Slate #516572 ΔE 0.042
Use #505D83 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.