#3F472F
Closest named color: Charcoal Grey (#3C4142). oklch(38.3% 0.04 123.3), rgb(63, 71, 47).
Aa
White text reads best on this color (9.75:1).
About this color
#3F472F is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.040 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.042 away. White text reads best on it, at 9.75:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.15:1 |
| White text | 9.75:1 |
Values
| HEX | #3F472F |
| RGB | rgb(63, 71, 47) |
| HSL | hsl(80, 20%, 23%) |
| OKLCH | oklch(38.3% 0.04 123.3) |
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 #3F472F | 9.75:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #3F472F | 2.15:1 | Fails | Lc 11.3 | Not readable |
| #3F472F text on white | 9.75:1 | AAA | Lc 92.6 | Preferred for body text |
| #3F472F text on black | 2.15:1 | Fails | Lc -9.8 | 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
#E8EBE5
oklch(93.6% 0.009 128.6)
-
Step 200
200
#D7DBCF
oklch(88.5% 0.017 121.8)
-
Step 300
300
#BDC4AF
oklch(80.9% 0.03 122.1)
-
Step 400
400
#9BA685
oklch(70.7% 0.048 122.6)
-
Step 500
500
#829066
oklch(63.1% 0.062 123.1)
-
Step 600
600
#6C7A4E
oklch(55.6% 0.066 122.9)
-
Step 700
700
#5A673F
oklch(49.2% 0.062 123.3)
-
Step 800
800
#495434
oklch(42.7% 0.052 124)
-
Step 900
900 (this color)
#3F472F
oklch(38.3% 0.04 123.3)
-
Step 950
950
#24291B
oklch(27.1% 0.026 124.1)
#3F472F 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) | #4A442D | 0.019 |
| Deuteranopia (no green cones) | #494430 | 0.019 |
| Tritanopia (no blue cones) | #414541 | 0.032 |
| Achromatopsia (no color) | #444444 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F472F
#3F472F
oklch(38.3% 0.04 123.3)
- #483E55
#483E55
oklch(38.4% 0.04 304.4)
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 #3F472F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.050
- Dark Olive #373E02 ΔE 0.054
- Green Brown #544E03 ΔE 0.060
- Evergreen #05472A ΔE 0.061
- Dark Blue Green #005249 ΔE 0.061
- Mud Brown #60460F ΔE 0.061
- Onyx #343A40 ΔE 0.062
Use #3F472F 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.