#3F2F23
Closest named color: Onyx (#343A40). oklch(32% 0.031 58.2), rgb(63, 47, 35).
Aa
White text reads best on this color (12.78:1).
About this color
#3F2F23 is a dark, muted brown. In OKLCH its lightness is 32%, its chroma 0.031 and its hue 58°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.051 away. White text reads best on it, at 12.78:1.
| Hue family | Browns |
| Lightness | dark (32%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.64:1 |
| White text | 12.78:1 |
Values
| HEX | #3F2F23 |
| RGB | rgb(63, 47, 35) |
| HSL | hsl(26, 29%, 19%) |
| OKLCH | oklch(32% 0.031 58.2) |
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 #3F2F23 | 12.78:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #3F2F23 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #3F2F23 text on white | 12.78:1 | AAA | Lc 98.9 | Preferred for body text |
| #3F2F23 text on black | 1.64:1 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E3
oklch(93.6% 0.011 54.5)
-
Step 200
200
#E4D6CC
oklch(88.5% 0.021 58)
-
Step 300
300
#D3BBAA
oklch(80.8% 0.036 57.5)
-
Step 400
400
#BD987D
oklch(70.7% 0.058 57.7)
-
Step 500
500
#AC7E5B
oklch(63% 0.075 58.1)
-
Step 600
600
#976741
oklch(55.6% 0.082 58.4)
-
Step 700
700
#815533
oklch(49% 0.076 57.5)
-
Step 800
800
#69462B
oklch(42.7% 0.063 57.7)
-
Step 900
900
#553B27
oklch(37.7% 0.048 58.2)
-
Step 950
950 (this color)
#3F2F23
oklch(32% 0.031 58.2)
#3F2F23 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) | #343022 | 0.021 |
| Deuteranopia (no green cones) | #383423 | 0.020 |
| Tritanopia (no blue cones) | #442C2C | 0.023 |
| Achromatopsia (no color) | #323232 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2F23
#3F2F23
oklch(32% 0.031 58.2)
- #243541
#243541
oklch(31.9% 0.031 239.7)
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 #3F2F23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.051
- Pakistan Green #283618 ΔE 0.053
- Gunmetal #293241 ΔE 0.060
- Charcoal Grey #3C4142 ΔE 0.063
- Chocolate Brown #411900 ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.066
- Dark Brown #341C02 ΔE 0.070
- Jet #212529 ΔE 0.070
Use #3F2F23 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.