#504B3D
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.3% 0.023 90.7), rgb(80, 75, 61).
Aa
White text reads best on this color (8.69:1).
About this color
#504B3D is a dark close to neutral grey. In OKLCH its lightness is 41%, its chroma 0.023. 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 8.69:1.
| Hue family | Neutrals |
| Lightness | dark (41%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #504B3D |
| RGB | rgb(80, 75, 61) |
| HSL | hsl(44, 13%, 28%) |
| OKLCH | oklch(41.3% 0.023 90.7) |
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 #504B3D | 8.69:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #504B3D | 2.41:1 | Fails | Lc 14.1 | Not readable |
| #504B3D text on white | 8.69:1 | AAA | Lc 89.8 | Fine for body text |
| #504B3D text on black | 2.41:1 | Fails | Lc -12.4 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE7
oklch(93.7% 0.004 91.4)
-
Step 200
200
#DBD9D4
oklch(88.5% 0.007 88.6)
-
Step 300
300
#C4C0B7
oklch(80.8% 0.013 86.8)
-
Step 400
400
#A6A092
oklch(70.7% 0.021 87.5)
-
Step 500
500
#908977
oklch(63.1% 0.027 89.3)
-
Step 600
600
#7A735F
oklch(55.6% 0.031 91)
-
Step 700
700
#67604F
oklch(49.1% 0.028 88.3)
-
Step 800
800 (this color)
#504B3D
oklch(41.3% 0.023 90.7)
-
Step 900
900
#454137
oklch(37.6% 0.017 88.8)
-
Step 950
950
#282620
oklch(26.9% 0.011 91.7)
#504B3D 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) | #4E4A3C | 0.005 |
| Deuteranopia (no green cones) | #504C3D | 0.003 |
| Tritanopia (no blue cones) | #534947 | 0.020 |
| Achromatopsia (no color) | #4B4B4B | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #504B3D
#504B3D
oklch(41.3% 0.023 90.7)
- #464B58
#464B58
oklch(41.3% 0.023 268.7)
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 #504B3D, 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
- Charcoal Grey #3C4142 ΔE 0.051
- Mud Brown #60460F ΔE 0.054
- Purple Brown #673A3F ΔE 0.064
- Green Brown #544E03 ΔE 0.064
- Charcoal #264653 ΔE 0.073
- Olive Brown #645403 ΔE 0.076
- Onyx #343A40 ΔE 0.077
Use #504B3D 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.