#4B615B
Closest named color: Slate (#516572). oklch(47.3% 0.028 176.5), rgb(75, 97, 91).
Aa
White text reads best on this color (6.64:1).
About this color
#4B615B is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.038 away. White text reads best on it, at 6.64:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.16:1 |
| White text | 6.64:1 |
Values
| HEX | #4B615B |
| RGB | rgb(75, 97, 91) |
| HSL | hsl(164, 13%, 34%) |
| OKLCH | oklch(47.3% 0.028 176.5) |
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 #4B615B | 6.64:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #4B615B | 3.16:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #4B615B text on white | 6.64:1 | AA | Lc 82.8 | Fine for body text |
| #4B615B text on black | 3.16:1 | AA large text | Lc -19.1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBD9
oklch(88.5% 0.008 177.3)
-
Step 300
300
#B8C4C0
oklch(81% 0.014 174.1)
-
Step 400
400
#93A5A0
oklch(70.6% 0.021 177.2)
-
Step 500
500
#788F89
oklch(63% 0.028 177.8)
-
Step 600
600
#617973
oklch(55.5% 0.03 178.3)
-
Step 700
700 (this color)
#4B615B
oklch(47.3% 0.028 176.5)
-
Step 800
800
#42534F
oklch(42.6% 0.022 179.3)
-
Step 900
900
#384541
oklch(37.7% 0.018 174.7)
-
Step 950
950
#212826
oklch(26.9% 0.011 176.4)
#4B615B 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) | #5F5E5B | 0.030 |
| Deuteranopia (no green cones) | #5B5B5B | 0.028 |
| Tritanopia (no blue cones) | #46625F | 0.008 |
| Achromatopsia (no color) | #5C5C5C | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B615B
#4B615B
oklch(47.3% 0.028 176.5)
- #69555C
#69555C
oklch(47.2% 0.028 355.2)
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 #4B615B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.046
- Dark Aqua #05696B ΔE 0.054
- Dim Gray #696969 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.058
- Petrol #005F6A ΔE 0.062
- Dusty Grape #545775 ΔE 0.062
- Dark Aquamarine #017371 ΔE 0.066
Use #4B615B 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.