#615D6B
Closest named color: Slate (#516572). oklch(48.7% 0.023 298.6), rgb(97, 93, 107).
Aa
White text reads best on this color (6.39:1).
About this color
#615D6B is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.023. 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 6.39:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #615D6B |
| RGB | rgb(97, 93, 107) |
| HSL | hsl(257, 7%, 39%) |
| OKLCH | oklch(48.7% 0.023 298.6) |
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 #615D6B | 6.39:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #615D6B | 3.28:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #615D6B text on white | 6.39:1 | AA | Lc 81.8 | Fine for body text |
| #615D6B text on black | 3.28:1 | AA large text | Lc -20.1 | 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
#EAE9EC
oklch(93.6% 0.004 301.4)
-
Step 200
200
#D9D8DD
oklch(88.4% 0.007 295.4)
-
Step 300
300
#C1BFC7
oklch(80.9% 0.011 297.6)
-
Step 400
400
#A29EAA
oklch(70.6% 0.018 301.1)
-
Step 500
500
#8B8796
oklch(63.2% 0.023 297.9)
-
Step 600
600
#757080
oklch(55.5% 0.025 299.8)
-
Step 700
700 (this color)
#615D6B
oklch(48.7% 0.023 298.6)
-
Step 800
800
#504D58
oklch(42.7% 0.018 298.1)
-
Step 900
900
#424048
oklch(37.6% 0.014 297.2)
-
Step 950
950
#27252A
oklch(26.9% 0.01 303.8)
#615D6B 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) | #5A5F6C | 0.011 |
| Deuteranopia (no green cones) | #5B5F6B | 0.011 |
| Tritanopia (no blue cones) | #5F5F62 | 0.018 |
| Achromatopsia (no color) | #5F5F5F | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #615D6B
#615D6B
oklch(48.7% 0.023 298.6)
- #5E6253
#5E6253
oklch(48.8% 0.024 119.4)
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 #615D6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- Dusty Grape #545775 ΔE 0.035
- Dim Gray #696969 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.052
- Dusk #4E5481 ΔE 0.059
- Denim #3B638C ΔE 0.067
- Dull Purple #84597E ΔE 0.070
- Muted Purple #805B87 ΔE 0.072
Use #615D6B 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.