#4F5140
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.8% 0.027 113), rgb(79, 81, 64).
Aa
White text reads best on this color (8.12:1).
About this color
#4F5140 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.050 away. White text reads best on it, at 8.12:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #4F5140 |
| RGB | rgb(79, 81, 64) |
| HSL | hsl(67, 12%, 28%) |
| OKLCH | oklch(42.8% 0.027 113) |
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 #4F5140 | 8.12:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #4F5140 | 2.58:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #4F5140 text on white | 8.12:1 | AAA | Lc 88.2 | Fine for body text |
| #4F5140 text on black | 2.58:1 | Fails | Lc -14.0 | Not readable |
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
#F5F5F4
oklch(97% 0.001 106.4)
-
Step 100
100
#EAEAE7
oklch(93.6% 0.004 106.5)
-
Step 200
200
#D9DAD3
oklch(88.6% 0.01 113.2)
-
Step 300
300
#C0C2B6
oklch(80.9% 0.017 114.4)
-
Step 400
400
#A0A391
oklch(70.8% 0.026 114.7)
-
Step 500
500
#898C76
oklch(63.1% 0.032 113.6)
-
Step 600
600
#73765E
oklch(55.6% 0.036 113.4)
-
Step 700
700
#60634E
oklch(49.1% 0.032 114.2)
-
Step 800
800 (this color)
#4F5140
oklch(42.8% 0.027 113)
-
Step 900
900
#414336
oklch(37.7% 0.022 114.5)
-
Step 950
950
#262720
oklch(26.9% 0.013 113.9)
#4F5140 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) | #544F3F | 0.009 |
| Deuteranopia (no green cones) | #545041 | 0.009 |
| Tritanopia (no blue cones) | #514F4C | 0.023 |
| Achromatopsia (no color) | #4F4F4F | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F5140
#4F5140
oklch(42.8% 0.027 113)
- #4F4D5D
#4F4D5D
oklch(42.8% 0.026 291)
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 #4F5140, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.050
- Mud Brown #60460F ΔE 0.058
- Green Brown #544E03 ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.064
- Pine #2B5D34 ΔE 0.066
- Olive Brown #645403 ΔE 0.069
- Dark Green Blue #1F6357 ΔE 0.069
- Army Green #4B5D16 ΔE 0.073
Use #4F5140 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.