#505B5E
Closest named color: Slate (#516572). oklch(46.3% 0.015 215.9), rgb(80, 91, 94).
Aa
White text reads best on this color (7.00:1).
About this color
#505B5E is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.038 away. White text reads best on it, at 7.00:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #505B5E |
| RGB | rgb(80, 91, 94) |
| HSL | hsl(193, 8%, 34%) |
| OKLCH | oklch(46.3% 0.015 215.9) |
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 #505B5E | 7.00:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #505B5E | 2.99:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #505B5E text on white | 7.00:1 | AAA | Lc 84.3 | Fine for body text |
| #505B5E text on black | 2.99:1 | Fails | Lc -17.7 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6DADB
oklch(88.6% 0.005 214.3)
-
Step 300
300
#BCC2C3
oklch(81% 0.007 208.8)
-
Step 400
400
#99A2A5
oklch(70.6% 0.011 219.6)
-
Step 500
500
#808C8F
oklch(63.1% 0.015 214.4)
-
Step 600
600
#697679
oklch(55.6% 0.016 213.2)
-
Step 700
700 (this color)
#505B5E
oklch(46.3% 0.015 215.9)
-
Step 800
800
#485153
oklch(42.8% 0.012 212.6)
-
Step 900
900
#3C4345
oklch(37.7% 0.01 216.7)
-
Step 950
950
#232728
oklch(26.9% 0.006 214.4)
#505B5E 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) | #595A5E | 0.014 |
| Deuteranopia (no green cones) | #56585E | 0.012 |
| Tritanopia (no blue cones) | #4C5C5C | 0.008 |
| Achromatopsia (no color) | #595959 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #505B5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.038
- Dusty Grape #545775 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.060
- Dim Gray #696969 ΔE 0.060
- Dark Slate Gray #2F4F4F ΔE 0.065
- Petrol #005F6A ΔE 0.065
- Dark Aqua #05696B ΔE 0.066
Use #505B5E 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.