#515F69
Closest named color: Slate (#516572). oklch(47.7% 0.024 239.1), rgb(81, 95, 105).
Aa
White text reads best on this color (6.58:1).
About this color
#515F69 is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.020 away. White text reads best on it, at 6.58:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.19:1 |
| White text | 6.58:1 |
Values
| HEX | #515F69 |
| RGB | rgb(81, 95, 105) |
| HSL | hsl(205, 13%, 36%) |
| OKLCH | oklch(47.7% 0.024 239.1) |
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 #515F69 | 6.58:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #515F69 | 3.19:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #515F69 text on white | 6.58:1 | AA | Lc 82.6 | Fine for body text |
| #515F69 text on black | 3.19:1 | 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
#F4F5F6
oklch(97% 0.002 247.8)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D5DADD
oklch(88.5% 0.007 233.7)
-
Step 300
300
#BAC2C7
oklch(80.9% 0.011 234.9)
-
Step 400
400
#97A2AB
oklch(70.6% 0.018 242.5)
-
Step 500
500
#7D8C96
oklch(63.1% 0.023 237)
-
Step 600
600
#667681
oklch(55.7% 0.026 238)
-
Step 700
700 (this color)
#515F69
oklch(47.7% 0.024 239.1)
-
Step 800
800
#455159
oklch(42.7% 0.02 237.2)
-
Step 900
900
#3A4349
oklch(37.7% 0.016 237.1)
-
Step 950
950
#22272B
oklch(26.9% 0.01 242.1)
#515F69 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) | #5B5F6A | 0.015 |
| Deuteranopia (no green cones) | #585C69 | 0.013 |
| Tritanopia (no blue cones) | #4A6262 | 0.020 |
| Achromatopsia (no color) | #5D5D5D | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515F69
#515F69
oklch(47.7% 0.024 239.1)
- #675A50
#675A50
oklch(47.7% 0.023 59.8)
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 #515F69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.020
- Dusty Grape #545775 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.038
- Dim Gray #696969 ΔE 0.050
- Denim #3B638C ΔE 0.058
- Dusk #4E5481 ΔE 0.059
- Dark Aqua #05696B ΔE 0.064
- Dark Green Blue #1F6357 ΔE 0.066
Use #515F69 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.