#3D180B
Closest named color: Chocolate Brown (#411900). oklch(26.2% 0.062 39.5), rgb(61, 24, 11).
Aa
White text reads best on this color (15.74:1).
About this color
#3D180B is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.062 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.017 away. White text reads best on it, at 15.74:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.33:1 |
| White text | 15.74:1 |
Values
| HEX | #3D180B |
| RGB | rgb(61, 24, 11) |
| HSL | hsl(16, 69%, 14%) |
| OKLCH | oklch(26.2% 0.062 39.5) |
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 #3D180B | 15.74:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #3D180B | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #3D180B text on white | 15.74:1 | AAA | Lc 102.4 | Preferred for body text |
| #3D180B text on black | 1.33:1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5DF
oklch(93.5% 0.021 39.4)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EBB19D
oklch(80.9% 0.074 39.9)
-
Step 400
400
#DF8667
oklch(70.8% 0.118 39.9)
-
Step 500
500
#D3643C
oklch(63.1% 0.151 39.8)
-
Step 600
600
#BF4716
oklch(55.6% 0.164 39.5)
-
Step 700
700
#A43705
oklch(49% 0.153 39.4)
-
Step 800
800
#852F0C
oklch(42.6% 0.126 39.5)
-
Step 900
900
#6B2B14
oklch(37.6% 0.098 39.4)
-
Step 950
950 (this color)
#3D180B
oklch(26.2% 0.062 39.5)
#3D180B 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) | #221E0A | 0.060 |
| Deuteranopia (no green cones) | #2B260A | 0.056 |
| Tritanopia (no blue cones) | #441015 | 0.030 |
| Achromatopsia (no color) | #232323 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D180B
#3D180B
oklch(26.2% 0.062 39.5)
- #002A34
#002A34
oklch(26.3% 0.047 218.2)
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 #3D180B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.017
- Dark Brown #341C02 ΔE 0.028
- Deep Brown #410200 ΔE 0.042
- Mahogany #4A0100 ΔE 0.044
- Dark Maroon #3C0008 ΔE 0.053
- Jet #212529 ΔE 0.071
- Dark Plum #3F012C ΔE 0.086
- Dark #1B2431 ΔE 0.086
Use #3D180B 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.