#515A66
Closest named color: Dusty Grape (#545775). oklch(46.4% 0.023 255.6), rgb(81, 90, 102).
Aa
White text reads best on this color (6.99:1).
About this color
#515A66 is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.030 away. White text reads best on it, at 6.99:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #515A66 |
| RGB | rgb(81, 90, 102) |
| HSL | hsl(214, 11%, 36%) |
| OKLCH | oklch(46.4% 0.023 255.6) |
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 #515A66 | 6.99:1 | AA | Lc -89.2 | Fine for body text |
| Black text on #515A66 | 3.00:1 | AA large text | Lc 19.8 | Dividers and decoration only |
| #515A66 text on white | 6.99:1 | AA | Lc 84.2 | Fine for body text |
| #515A66 text on black | 3.00:1 | AA large text | Lc -17.8 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DD
oklch(88.4% 0.006 255.5)
-
Step 300
300
#BCC1C8
oklch(80.9% 0.011 256.7)
-
Step 400
400
#9AA1AC
oklch(70.7% 0.018 259.4)
-
Step 500
500
#818A97
oklch(63% 0.022 257.5)
-
Step 600
600
#6A7482
oklch(55.5% 0.025 256.8)
-
Step 700
700 (this color)
#515A66
oklch(46.4% 0.023 255.6)
-
Step 800
800
#485059
oklch(42.7% 0.018 251.4)
-
Step 900
900
#3D4249
oklch(37.7% 0.014 256.8)
-
Step 950
950
#23272B
oklch(27% 0.009 248.2)
#515A66 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) | #565A67 | 0.008 |
| Deuteranopia (no green cones) | #545866 | 0.007 |
| Tritanopia (no blue cones) | #4C5D5E | 0.020 |
| Achromatopsia (no color) | #595959 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #515A66
#515A66
oklch(46.4% 0.023 255.6)
- #61584B
#61584B
oklch(46.5% 0.023 77.1)
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 #515A66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.030
- Slate #516572 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.034
- Dusk #4E5481 ΔE 0.053
- Dim Gray #696969 ΔE 0.061
- Denim #3B638C ΔE 0.063
- Petrol #005F6A ΔE 0.066
- Light Navy Blue #2E5A88 ΔE 0.068
Use #515A66 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.