#505478
Closest named color: Dusty Grape (#545775). oklch(45.8% 0.059 278.9), rgb(80, 84, 120).
Aa
White text reads best on this color (7.29:1).
About this color
#505478 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.059 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.013 away. White text reads best on it, at 7.29:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.88:1 |
| White text | 7.29:1 |
Values
| HEX | #505478 |
| RGB | rgb(80, 84, 120) |
| HSL | hsl(234, 20%, 39%) |
| OKLCH | oklch(45.8% 0.059 278.9) |
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 #505478 | 7.29:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #505478 | 2.88:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #505478 text on white | 7.29:1 | AAA | Lc 85.3 | Fine for body text |
| #505478 text on black | 2.88:1 | Fails | Lc -16.7 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BBBFD7
oklch(80.9% 0.034 278.1)
-
Step 400
400
#999EC3
oklch(70.8% 0.054 278.9)
-
Step 500
500
#8085B4
oklch(63% 0.071 279.4)
-
Step 600
600
#696FA0
oklch(55.7% 0.076 278.2)
-
Step 700
700
#585C89
oklch(49% 0.072 279.5)
-
Step 800
800 (this color)
#505478
oklch(45.8% 0.059 278.9)
-
Step 900
900
#3C3F5A
oklch(37.7% 0.046 279)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#505478 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) | #49587A | 0.014 |
| Deuteranopia (no green cones) | #475577 | 0.013 |
| Tritanopia (no blue cones) | #455B61 | 0.052 |
| Achromatopsia (no color) | #565656 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505478
#505478
oklch(45.8% 0.059 278.9)
- #5F5830
#5F5830
oklch(45.7% 0.059 99.6)
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 #505478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.013
- Dusk #4E5481 ΔE 0.015
- YInMn Blue #415A77 ΔE 0.026
- Twilight #4E518B ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.049
- Denim #3B638C ΔE 0.051
Use #505478 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.