#515B52
Closest named color: Slate (#516572). oklch(46% 0.019 148.1), rgb(81, 91, 82).
Aa
White text reads best on this color (7.07:1).
About this color
#515B52 is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.051 away. White text reads best on it, at 7.07:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #515B52 |
| RGB | rgb(81, 91, 82) |
| HSL | hsl(126, 6%, 34%) |
| OKLCH | oklch(46% 0.019 148.1) |
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 #515B52 | 7.07:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #515B52 | 2.96:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #515B52 text on white | 7.07:1 | AAA | Lc 84.5 | Fine for body text |
| #515B52 text on black | 2.96:1 | Fails | Lc -17.4 | 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
#E9EAE9
oklch(93.6% 0.002 145.6)
-
Step 200
200
#D7DAD7
oklch(88.5% 0.005 145.5)
-
Step 300
300
#BDC2BD
oklch(80.9% 0.009 145.5)
-
Step 400
400
#9BA39B
oklch(70.7% 0.015 145.4)
-
Step 500
500
#828D83
oklch(63.1% 0.02 148)
-
Step 600
600
#6C776D
oklch(55.7% 0.02 147.9)
-
Step 700
700 (this color)
#515B52
oklch(46% 0.019 148.1)
-
Step 800
800
#49514A
oklch(42.5% 0.015 149)
-
Step 900
900
#3D433E
oklch(37.6% 0.012 150.4)
-
Step 950
950
#242824
oklch(27.1% 0.009 145.3)
#515B52 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) | #5B5952 | 0.016 |
| Deuteranopia (no green cones) | #595852 | 0.015 |
| Tritanopia (no blue cones) | #505A58 | 0.011 |
| Achromatopsia (no color) | #585858 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515B52
#515B52
oklch(46% 0.019 148.1)
- #5E545D
#5E545D
oklch(45.9% 0.019 329)
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 #515B52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.063
- Dusty Grape #545775 ΔE 0.063
- YInMn Blue #415A77 ΔE 0.064
- Dim Gray #696969 ΔE 0.064
- Dark Aqua #05696B ΔE 0.070
- Petrol #005F6A ΔE 0.071
Use #515B52 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.