#3F331F
Closest named color: Pakistan Green (#283618). oklch(32.9% 0.037 79.7), rgb(63, 51, 31).
Aa
White text reads best on this color (12.31:1).
About this color
#3F331F is a dark, muted brown. In OKLCH its lightness is 33%, its chroma 0.037 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.044 away. White text reads best on it, at 12.31:1.
| Hue family | Browns |
| Lightness | dark (33%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.70:1 |
| White text | 12.31:1 |
Values
| HEX | #3F331F |
| RGB | rgb(63, 51, 31) |
| HSL | hsl(38, 34%, 18%) |
| OKLCH | oklch(32.9% 0.037 79.7) |
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 #3F331F | 12.31:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #3F331F | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #3F331F text on white | 12.31:1 | AAA | Lc 98.1 | Preferred for body text |
| #3F331F text on black | 1.70:1 | 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 900.
-
Step 50
50
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EDE9E4
oklch(93.6% 0.008 73.7)
-
Step 200
200
#DED8CE
oklch(88.4% 0.015 80.7)
-
Step 300
300
#CABFAD
oklch(80.9% 0.028 80.2)
-
Step 400
400
#AF9E82
oklch(70.7% 0.044 80.2)
-
Step 500
500
#9C8663
oklch(63.1% 0.056 79)
-
Step 600
600
#86704A
oklch(55.7% 0.06 80.7)
-
Step 700
700
#725D3B
oklch(49.1% 0.056 78.9)
-
Step 800
800
#5D4C31
oklch(42.7% 0.047 78.6)
-
Step 900
900 (this color)
#3F331F
oklch(32.9% 0.037 79.7)
-
Step 950
950
#2C251A
oklch(26.9% 0.022 78.8)
#3F331F 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) | #38331D | 0.014 |
| Deuteranopia (no green cones) | #3B3620 | 0.011 |
| Tritanopia (no blue cones) | #442F2E | 0.033 |
| Achromatopsia (no color) | #353535 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F331F
#3F331F
oklch(32.9% 0.037 79.7)
- #2A3548
#2A3548
oklch(32.8% 0.037 261.2)
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 #3F331F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.044
- Onyx #343A40 ΔE 0.052
- Dark Olive #373E02 ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.059
- Gunmetal #293241 ΔE 0.068
- Chocolate Brown #411900 ΔE 0.074
- Space Cadet #2B2D42 ΔE 0.077
- Dark Brown #341C02 ΔE 0.078
Use #3F331F 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.