#3F412B
Closest named color: Charcoal Grey (#3C4142). oklch(36.7% 0.036 112.4), rgb(63, 65, 43).
Aa
White text reads best on this color (10.48:1).
About this color
#3F412B is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.036 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.038 away. White text reads best on it, at 10.48:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.036) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.00:1 |
| White text | 10.48:1 |
Values
| HEX | #3F412B |
| RGB | rgb(63, 65, 43) |
| HSL | hsl(65, 20%, 21%) |
| OKLCH | oklch(36.7% 0.036 112.4) |
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 #3F412B | 10.48:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #3F412B | 2.00:1 | Fails | Lc 9.6 | Not readable |
| #3F412B text on white | 10.48:1 | AAA | Lc 94.3 | Preferred for body text |
| #3F412B text on black | 2.00:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#D9DACF
oklch(88.5% 0.015 110.9)
-
Step 300
300
#C0C3AF
oklch(80.9% 0.028 113.9)
-
Step 400
400
#A1A485
oklch(70.8% 0.044 112)
-
Step 500
500
#8A8D67
oklch(63.1% 0.054 111.6)
-
Step 600
600
#74774E
oklch(55.6% 0.059 111.7)
-
Step 700
700
#61643F
oklch(49.1% 0.055 112.2)
-
Step 800
800
#4F5234
oklch(42.8% 0.046 113)
-
Step 900
900 (this color)
#3F412B
oklch(36.7% 0.036 112.4)
-
Step 950
950
#26281B
oklch(27.1% 0.023 115.1)
#3F412B 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) | #443F2A | 0.010 |
| Deuteranopia (no green cones) | #44402C | 0.009 |
| Tritanopia (no blue cones) | #423E3B | 0.032 |
| Achromatopsia (no color) | #3F3F3F | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F412B
#3F412B
oklch(36.7% 0.036 112.4)
- #3F3C50
#3F3C50
oklch(36.7% 0.034 291.5)
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 #3F412B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.038
- Dark Olive #373E02 ΔE 0.048
- Onyx #343A40 ΔE 0.051
- Pakistan Green #283618 ΔE 0.059
- Dark Slate Gray #2F4F4F ΔE 0.061
- Evergreen #05472A ΔE 0.062
- Charcoal #264653 ΔE 0.067
- Mud Brown #60460F ΔE 0.068
Use #3F412B 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.