#505E5F
Closest named color: Slate (#516572). oklch(47% 0.017 201.9), rgb(80, 94, 95).
Aa
White text reads best on this color (6.75:1).
About this color
#505E5F is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.032 away. White text reads best on it, at 6.75:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.10:1 |
| White text | 6.75:1 |
Values
| HEX | #505E5F |
| RGB | rgb(80, 94, 95) |
| HSL | hsl(184, 9%, 34%) |
| OKLCH | oklch(47% 0.017 201.9) |
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 #505E5F | 6.75:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #505E5F | 3.10:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #505E5F text on white | 6.75:1 | AA | Lc 83.3 | Fine for body text |
| #505E5F text on black | 3.10:1 | AA large text | Lc -18.6 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BBC2C3
oklch(80.9% 0.008 207.1)
-
Step 400
400
#97A3A4
oklch(70.6% 0.014 202.9)
-
Step 500
500
#7E8D8E
oklch(63.2% 0.017 201.6)
-
Step 600
600
#677778
oklch(55.6% 0.019 201.2)
-
Step 700
700 (this color)
#505E5F
oklch(47% 0.017 201.9)
-
Step 800
800
#465152
oklch(42.6% 0.014 203.3)
-
Step 900
900
#3B4344
oklch(37.6% 0.011 205.8)
-
Step 950
950
#232728
oklch(26.9% 0.006 214.4)
#505E5F 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) | #5C5D5F | 0.018 |
| Deuteranopia (no green cones) | #595A5F | 0.017 |
| Tritanopia (no blue cones) | #4C5F5E | 0.007 |
| Achromatopsia (no color) | #5B5B5B | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #505E5F
#505E5F
oklch(47% 0.017 201.9)
- #645756
#645756
oklch(46.9% 0.017 23)
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 #505E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.032
- Dusty Grape #545775 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.049
- Dim Gray #696969 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.057
- Dark Aqua #05696B ΔE 0.062
- Petrol #005F6A ΔE 0.065
- Dark Slate Gray #2F4F4F ΔE 0.070
Use #505E5F 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.