#5A554B
Closest named color: Slate (#516572). oklch(45.1% 0.017 84.6), rgb(90, 85, 75).
Aa
White text reads best on this color (7.40:1).
About this color
#5A554B is a medium-dark close to neutral grey. In OKLCH its lightness is 45%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.065 away. White text reads best on it, at 7.40:1.
| Hue family | Neutrals |
| Lightness | medium-dark (45%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #5A554B |
| RGB | rgb(90, 85, 75) |
| HSL | hsl(40, 9%, 32%) |
| OKLCH | oklch(45.1% 0.017 84.6) |
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 #5A554B | 7.40:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #5A554B | 2.83:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #5A554B text on white | 7.40:1 | AAA | Lc 85.8 | Fine for body text |
| #5A554B text on black | 2.83:1 | Fails | Lc -16.3 | 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
#EBEAE8
oklch(93.7% 0.003 84.6)
-
Step 200
200
#DBD9D5
oklch(88.6% 0.006 84.6)
-
Step 300
300
#C3C0B9
oklch(80.8% 0.01 87.5)
-
Step 400
400
#A5A096
oklch(70.7% 0.015 84.6)
-
Step 500
500
#8F897C
oklch(63.2% 0.02 86.2)
-
Step 600
600
#797365
oklch(55.7% 0.022 87.6)
-
Step 700
700
#666054
oklch(49.1% 0.02 84.6)
-
Step 800
800 (this color)
#5A554B
oklch(45.1% 0.017 84.6)
-
Step 900
900
#45413A
oklch(37.7% 0.013 81.7)
-
Step 950
950
#282622
oklch(26.9% 0.008 84.6)
#5A554B 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) | #58554A | 0.004 |
| Deuteranopia (no green cones) | #59564B | 0.003 |
| Tritanopia (no blue cones) | #5D5352 | 0.016 |
| Achromatopsia (no color) | #555555 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A554B
#5A554B
oklch(45.1% 0.017 84.6)
- #51565F
#51565F
oklch(45.2% 0.016 262.3)
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 #5A554B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.065
- Dusty Grape #545775 ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.067
- Mud Brown #60460F ΔE 0.072
- Dim Gray #696969 ΔE 0.072
- Brownish Purple #76424E ΔE 0.072
- Dark Green Blue #1F6357 ΔE 0.074
- YInMn Blue #415A77 ΔE 0.074
Use #5A554B 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.