#3F1903
Closest named color: Chocolate Brown (#411900). oklch(26.6% 0.068 47.7), rgb(63, 25, 3).
Aa
White text reads best on this color (15.53:1).
About this color
#3F1903 is a dark, muted brown. In OKLCH its lightness is 27%, its chroma 0.068 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.006 away. White text reads best on it, at 15.53:1.
| Hue family | Browns |
| Lightness | dark (27%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.35:1 |
| White text | 15.53:1 |
Values
| HEX | #3F1903 |
| RGB | rgb(63, 25, 3) |
| HSL | hsl(22, 91%, 13%) |
| OKLCH | oklch(26.6% 0.068 47.7) |
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 #3F1903 | 15.53:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #3F1903 | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #3F1903 text on white | 15.53:1 | AAA | Lc 102.1 | Preferred for body text |
| #3F1903 text on black | 1.35:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FCF3EF
oklch(97% 0.011 45.7)
-
Step 100
100
#F8E6DD
oklch(93.7% 0.023 48.5)
-
Step 200
200
#F3D1C0
oklch(88.5% 0.045 48.2)
-
Step 300
300
#ECB194
oklch(80.8% 0.08 47.3)
-
Step 400
400
#E18656
oklch(70.8% 0.129 47.6)
-
Step 500
500
#D66317
oklch(63.1% 0.165 47.5)
-
Step 600
600
#B75000
oklch(55.5% 0.152 47.7)
-
Step 700
700
#9B4300
oklch(49.2% 0.134 47.9)
-
Step 800
800
#803600
oklch(42.8% 0.117 47.8)
-
Step 900
900
#6B2C00
oklch(37.6% 0.103 47.9)
-
Step 950
950 (this color)
#3F1903
oklch(26.6% 0.068 47.7)
#3F1903 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) | #241F01 | 0.061 |
| Deuteranopia (no green cones) | #2D2702 | 0.055 |
| Tritanopia (no blue cones) | #461014 | 0.038 |
| Achromatopsia (no color) | #242424 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1903
#3F1903
oklch(26.6% 0.068 47.7)
- #002A39
#002A39
oklch(26.6% 0.052 227.6)
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 #3F1903, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.006
- Dark Brown #341C02 ΔE 0.026
- Deep Brown #410200 ΔE 0.046
- Mahogany #4A0100 ΔE 0.046
- Dark Maroon #3C0008 ΔE 0.060
- Jet #212529 ΔE 0.077
- Pakistan Green #283618 ΔE 0.092
- Dark #1B2431 ΔE 0.093
Use #3F1903 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.