#41575B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(44% 0.028 209.9), rgb(65, 87, 91).
Aa
White text reads best on this color (7.66:1).
About this color
#41575B is a dark close to neutral grey. In OKLCH its lightness is 44%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.039 away. White text reads best on it, at 7.66:1.
| Hue family | Neutrals |
| Lightness | dark (44%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.73:1 |
| White text | 7.66:1 |
Values
| HEX | #41575B |
| RGB | rgb(65, 87, 91) |
| HSL | hsl(189, 17%, 31%) |
| OKLCH | oklch(44% 0.028 209.9) |
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 #41575B | 7.66:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #41575B | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #41575B text on white | 7.66:1 | AAA | Lc 86.6 | Fine for body text |
| #41575B text on black | 2.73:1 | Fails | Lc -15.5 | 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 800.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B5C4C6
oklch(80.9% 0.017 206.4)
-
Step 400
400
#8FA5A9
oklch(70.6% 0.025 209.8)
-
Step 500
500
#738F94
oklch(63% 0.033 209.6)
-
Step 600
600
#5B797F
oklch(55.5% 0.036 211.2)
-
Step 700
700
#4B666B
oklch(49.1% 0.033 210.2)
-
Step 800
800 (this color)
#41575B
oklch(44% 0.028 209.9)
-
Step 900
900
#354548
oklch(37.8% 0.021 210.3)
-
Step 950
950
#1F282A
oklch(26.9% 0.013 212.7)
#41575B 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) | #53555B | 0.026 |
| Deuteranopia (no green cones) | #4F525B | 0.024 |
| Tritanopia (no blue cones) | #395958 | 0.014 |
| Achromatopsia (no color) | #535353 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #41575B
#41575B
oklch(44% 0.028 209.9)
- #614D4A
#614D4A
oklch(44% 0.028 28.1)
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 #41575B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.039
- YInMn Blue #415A77 ΔE 0.045
- Petrol #005F6A ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.050
- Deep Teal #00555A ΔE 0.053
- Dusty Grape #545775 ΔE 0.054
- Slate #516572 ΔE 0.057
- Dark Aqua #05696B ΔE 0.062
Use #41575B 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.