#515E61
Closest named color: Slate (#516572). oklch(47.2% 0.017 213.2), rgb(81, 94, 97).
Aa
White text reads best on this color (6.72:1).
About this color
#515E61 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 0.029 away. White text reads best on it, at 6.72:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #515E61 |
| RGB | rgb(81, 94, 97) |
| HSL | hsl(191, 9%, 35%) |
| OKLCH | oklch(47.2% 0.017 213.2) |
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 #515E61 | 6.72:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #515E61 | 3.12:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #515E61 text on white | 6.72:1 | AA | Lc 83.2 | Fine for body text |
| #515E61 text on black | 3.12:1 | AA large text | Lc -18.8 | 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
#F5F6F6
oklch(97.2% 0.001 197.1)
-
Step 100
100
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D6DADB
oklch(88.6% 0.005 214.3)
-
Step 300
300
#BBC2C4
oklch(80.9% 0.008 216.6)
-
Step 400
400
#98A3A5
oklch(70.7% 0.013 209.8)
-
Step 500
500
#7F8C8F
oklch(63.1% 0.016 213.1)
-
Step 600
600
#68767A
oklch(55.6% 0.018 216.8)
-
Step 700
700 (this color)
#515E61
oklch(47.2% 0.017 213.2)
-
Step 800
800
#475154
oklch(42.7% 0.014 217.7)
-
Step 900
900
#3B4345
oklch(37.6% 0.011 214.4)
-
Step 950
950
#232728
oklch(26.9% 0.006 214.4)
#515E61 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) | #5C5D61 | 0.016 |
| Deuteranopia (no green cones) | #595B61 | 0.014 |
| Tritanopia (no blue cones) | #4D5F5F | 0.008 |
| Achromatopsia (no color) | #5C5C5C | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515E61
#515E61
oklch(47.2% 0.017 213.2)
- #645855
#645855
oklch(47.1% 0.016 34.3)
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 #515E61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.029
- Dusty Grape #545775 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.046
- Dim Gray #696969 ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.060
- Dark Aqua #05696B ΔE 0.063
- Petrol #005F6A ΔE 0.066
- Dusk #4E5481 ΔE 0.069
Use #515E61 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.