#545F59
Closest named color: Slate (#516572). oklch(47.4% 0.017 161.9), rgb(84, 95, 89).
Aa
White text reads best on this color (6.64:1).
About this color
#545F59 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 0.038 away. White text reads best on it, at 6.64:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.15:1 |
| White text | 6.64:1 |
Values
| HEX | #545F59 |
| RGB | rgb(84, 95, 89) |
| HSL | hsl(147, 6%, 35%) |
| OKLCH | oklch(47.4% 0.017 161.9) |
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 #545F59 | 6.64:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #545F59 | 3.15:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #545F59 text on white | 6.64:1 | AA | Lc 82.9 | Fine for body text |
| #545F59 text on black | 3.15:1 | AA large text | Lc -19.0 | 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAE9
oklch(93.5% 0.003 165.1)
-
Step 200
200
#D7DAD8
oklch(88.5% 0.004 157.2)
-
Step 300
300
#BCC2BF
oklch(80.8% 0.008 164.9)
-
Step 400
400
#9AA39E
oklch(70.7% 0.012 161.9)
-
Step 500
500
#818D86
oklch(63.1% 0.017 160.4)
-
Step 600
600
#6A7770
oklch(55.6% 0.019 162.3)
-
Step 700
700 (this color)
#545F59
oklch(47.4% 0.017 161.9)
-
Step 800
800
#49514D
oklch(42.6% 0.012 164.4)
-
Step 900
900
#3D4340
oklch(37.6% 0.009 164.5)
-
Step 950
950
#242725
oklch(26.9% 0.006 156.8)
#545F59 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) | #5F5D59 | 0.017 |
| Deuteranopia (no green cones) | #5D5C59 | 0.016 |
| Tritanopia (no blue cones) | #525F5D | 0.007 |
| Achromatopsia (no color) | #5C5C5C | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545F59
#545F59
oklch(47.4% 0.017 161.9)
- #63585F
#63585F
oklch(47.3% 0.018 339.4)
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 #545F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.038
- Dim Gray #696969 ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.058
- Dusty Grape #545775 ΔE 0.059
- YInMn Blue #415A77 ΔE 0.061
- Dark Aqua #05696B ΔE 0.066
- Petrol #005F6A ΔE 0.073
- Dark Moss Green #606C38 ΔE 0.073
Use #545F59 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.