#5B554D
Closest named color: Slate (#516572). oklch(45.3% 0.015 75.2), rgb(91, 85, 77).
Aa
White text reads best on this color (7.36:1).
About this color
#5B554D is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.063 away. White text reads best on it, at 7.36:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #5B554D |
| RGB | rgb(91, 85, 77) |
| HSL | hsl(34, 8%, 33%) |
| OKLCH | oklch(45.3% 0.015 75.2) |
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 #5B554D | 7.36:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #5B554D | 2.85:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #5B554D text on white | 7.36:1 | AAA | Lc 85.6 | Fine for body text |
| #5B554D text on black | 2.85:1 | Fails | Lc -16.4 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBE9E8
oklch(93.5% 0.003 48.7)
-
Step 200
200
#DBD9D6
oklch(88.6% 0.005 78.3)
-
Step 300
300
#C4C0BA
oklch(80.9% 0.009 78.3)
-
Step 400
400
#A6A097
oklch(70.8% 0.015 78.2)
-
Step 500
500
#90887E
oklch(63.1% 0.018 73.6)
-
Step 600
600
#7A7267
oklch(55.6% 0.019 76)
-
Step 700
700
#675F56
oklch(49% 0.017 70.7)
-
Step 800
800 (this color)
#5B554D
oklch(45.3% 0.015 75.2)
-
Step 900
900
#45413B
oklch(37.7% 0.011 78.2)
-
Step 950
950
#292622
oklch(27% 0.009 75.2)
#5B554D 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) | #57554D | 0.007 |
| Deuteranopia (no green cones) | #59564D | 0.004 |
| Tritanopia (no blue cones) | #5E5353 | 0.014 |
| Achromatopsia (no color) | #565656 | 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 #5B554D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.063
- Dusty Grape #545775 ΔE 0.064
- Dark Slate Gray #2F4F4F ΔE 0.069
- Dim Gray #696969 ΔE 0.070
- Brownish Purple #76424E ΔE 0.070
- YInMn Blue #415A77 ΔE 0.072
- Mud Brown #60460F ΔE 0.074
- Dark Green Blue #1F6357 ΔE 0.075
Use #5B554D 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.