#545F6F
Closest named color: Slate (#516572). oklch(48.2% 0.029 257.7), rgb(84, 95, 111).
Aa
White text reads best on this color (6.47:1).
About this color
#545F6F is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.017 away. White text reads best on it, at 6.47:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #545F6F |
| RGB | rgb(84, 95, 111) |
| HSL | hsl(216, 14%, 38%) |
| OKLCH | oklch(48.2% 0.029 257.7) |
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 #545F6F | 6.47:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #545F6F | 3.24:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #545F6F text on white | 6.47:1 | AA | Lc 82.1 | Fine for body text |
| #545F6F text on black | 3.24:1 | AA large text | Lc -19.8 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9DE
oklch(88.4% 0.008 260.7)
-
Step 300
300
#BBC1CA
oklch(80.9% 0.014 258.4)
-
Step 400
400
#98A1AF
oklch(70.6% 0.023 259.2)
-
Step 500
500
#7F8A9B
oklch(63% 0.029 259)
-
Step 600
600
#687486
oklch(55.5% 0.032 258.4)
-
Step 700
700 (this color)
#545F6F
oklch(48.2% 0.029 257.7)
-
Step 800
800
#47505C
oklch(42.8% 0.023 255.6)
-
Step 900
900
#3B424C
oklch(37.7% 0.02 257.3)
-
Step 950
950
#23272C
oklch(27.1% 0.011 254)
#545F6F 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) | #5A6070 | 0.010 |
| Deuteranopia (no green cones) | #575D6F | 0.007 |
| Tritanopia (no blue cones) | #4D6264 | 0.025 |
| Achromatopsia (no color) | #5E5E5E | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545F6F
#545F6F
oklch(48.2% 0.029 257.7)
- #685C4C
#685C4C
oklch(48.2% 0.029 74.9)
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 #545F6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.017
- Dusty Grape #545775 ΔE 0.029
- YInMn Blue #415A77 ΔE 0.035
- Dim Gray #696969 ΔE 0.049
- Dusk #4E5481 ΔE 0.052
- Denim #3B638C ΔE 0.052
- Dusky Blue #475F94 ΔE 0.062
- Light Navy Blue #2E5A88 ΔE 0.065
Use #545F6F 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.