#3F2B28
Closest named color: Onyx (#343A40). oklch(31.2% 0.031 28.5), rgb(63, 43, 40).
Aa
White text reads best on this color (13.22:1).
About this color
#3F2B28 is a dark, muted red. In OKLCH its lightness is 31%, its chroma 0.031 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.053 away. White text reads best on it, at 13.22:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.58:1 |
| White text | 13.22:1 |
Values
| HEX | #3F2B28 |
| RGB | rgb(63, 43, 40) |
| HSL | hsl(8, 22%, 20%) |
| OKLCH | oklch(31.2% 0.031 28.5) |
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 #3F2B28 | 13.22:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #3F2B28 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #3F2B28 text on white | 13.22:1 | AAA | Lc 99.5 | Preferred for body text |
| #3F2B28 text on black | 1.58:1 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E6
oklch(93.6% 0.011 24.3)
-
Step 200
200
#E6D4D2
oklch(88.4% 0.02 25.2)
-
Step 300
300
#D7B8B4
oklch(80.8% 0.036 26.6)
-
Step 400
400
#C2938C
oklch(70.6% 0.058 28.3)
-
Step 500
500
#B27870
oklch(63% 0.074 28)
-
Step 600
600
#9D6158
oklch(55.6% 0.08 29.1)
-
Step 700
700
#865048
oklch(49.1% 0.074 29.1)
-
Step 800
800
#6D423B
oklch(42.8% 0.061 29.8)
-
Step 900
900
#593833
oklch(37.8% 0.048 29)
-
Step 950
950 (this color)
#3F2B28
oklch(31.2% 0.031 28.5)
#3F2B28 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) | #2F2E28 | 0.031 |
| Deuteranopia (no green cones) | #343128 | 0.027 |
| Tritanopia (no blue cones) | #43292A | 0.011 |
| Achromatopsia (no color) | #303030 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2B28
#3F2B28
oklch(31.2% 0.031 28.5)
- #1D3539
#1D3539
oklch(31.1% 0.031 209.2)
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 #3F2B28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.053
- Gunmetal #293241 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.056
- Chocolate Brown #411900 ΔE 0.062
- Jet #212529 ΔE 0.063
- Pakistan Green #283618 ΔE 0.066
- Dark Brown #341C02 ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.070
Use #3F2B28 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.