#3F210B
Closest named color: Chocolate Brown (#411900). oklch(28.3% 0.057 54.1), rgb(63, 33, 11).
Aa
White text reads best on this color (14.64:1).
About this color
#3F210B is a dark, muted brown. In OKLCH its lightness is 28%, its chroma 0.057 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.021 away. White text reads best on it, at 14.64:1.
| Hue family | Browns |
| Lightness | dark (28%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.43:1 |
| White text | 14.64:1 |
Values
| HEX | #3F210B |
| RGB | rgb(63, 33, 11) |
| HSL | hsl(25, 70%, 15%) |
| OKLCH | oklch(28.3% 0.057 54.1) |
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 #3F210B | 14.64:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #3F210B | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #3F210B text on white | 14.64:1 | AAA | Lc 101.3 | Preferred for body text |
| #3F210B text on black | 1.43:1 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DE
oklch(93.7% 0.02 55.1)
-
Step 200
200
#EED3C2
oklch(88.5% 0.038 54.3)
-
Step 300
300
#E4B698
oklch(81% 0.067 54.7)
-
Step 400
400
#D58E5D
oklch(70.8% 0.108 54.7)
-
Step 500
500
#C86F2A
oklch(63.1% 0.138 54.1)
-
Step 600
600
#AF5800
oklch(55.6% 0.139 54.3)
-
Step 700
700
#944900
oklch(49% 0.123 54)
-
Step 800
800
#7A3B00
oklch(42.6% 0.107 54)
-
Step 900
900
#653206
oklch(37.7% 0.09 54.3)
-
Step 950
950 (this color)
#3F210B
oklch(28.3% 0.057 54.1)
#3F210B 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) | #2A2409 | 0.045 |
| Deuteranopia (no green cones) | #312B0B | 0.041 |
| Tritanopia (no blue cones) | #461B1C | 0.037 |
| Achromatopsia (no color) | #282828 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F210B
#3F210B
oklch(28.3% 0.057 54.1)
- #032E41
#032E41
oklch(28.4% 0.056 233.2)
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 #3F210B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.021
- Dark Brown #341C02 ΔE 0.032
- Mahogany #4A0100 ΔE 0.063
- Deep Brown #410200 ΔE 0.066
- Jet #212529 ΔE 0.069
- Pakistan Green #283618 ΔE 0.073
- Dark Maroon #3C0008 ΔE 0.079
- Dark #1B2431 ΔE 0.087
Use #3F210B 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.