#51605F
Closest named color: Slate (#516572). oklch(47.6% 0.018 191.6), rgb(81, 96, 95).
Aa
White text reads best on this color (6.58:1).
About this color
#51605F is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.030 away. White text reads best on it, at 6.58:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.18:1 |
| White text | 6.58:1 |
Values
| HEX | #51605F |
| RGB | rgb(81, 96, 95) |
| HSL | hsl(176, 8%, 35%) |
| OKLCH | oklch(47.6% 0.018 191.6) |
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 #51605F | 6.58:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #51605F | 3.18:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #51605F text on white | 6.58:1 | AA | Lc 82.6 | Fine for body text |
| #51605F text on black | 3.18:1 | AA large text | Lc -19.3 | 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 700.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BAC2C2
oklch(80.8% 0.009 197)
-
Step 400
400
#97A4A3
oklch(70.8% 0.015 191.3)
-
Step 500
500
#7D8D8C
oklch(63% 0.019 192.1)
-
Step 600
600
#677776
oklch(55.6% 0.019 192)
-
Step 700
700 (this color)
#51605F
oklch(47.6% 0.018 191.6)
-
Step 800
800
#465251
oklch(42.8% 0.015 190.5)
-
Step 900
900
#3B4443
oklch(37.8% 0.012 188.5)
-
Step 950
950
#222827
oklch(27.1% 0.009 184.6)
#51605F 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) | #5E5E5F | 0.020 |
| Deuteranopia (no green cones) | #5B5C5F | 0.018 |
| Tritanopia (no blue cones) | #4D6160 | 0.006 |
| Achromatopsia (no color) | #5D5D5D | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51605F
#51605F
oklch(47.6% 0.018 191.6)
- #66585A
#66585A
oklch(47.5% 0.019 8.1)
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 #51605F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- Dim Gray #696969 ΔE 0.048
- Dusty Grape #545775 ΔE 0.053
- YInMn Blue #415A77 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.057
- Dark Aqua #05696B ΔE 0.061
- Petrol #005F6A ΔE 0.067
- Dark Aquamarine #017371 ΔE 0.072
Use #51605F 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.