#3A181B
Closest named color: Chocolate Brown (#411900). oklch(26% 0.054 16.1), rgb(58, 24, 27).
Aa
White text reads best on this color (15.83:1).
About this color
#3A181B is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.054 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.041 away. White text reads best on it, at 15.83:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.32:1 |
| White text | 15.83:1 |
Values
| HEX | #3A181B |
| RGB | rgb(58, 24, 27) |
| HSL | hsl(355, 41%, 16%) |
| OKLCH | oklch(26% 0.054 16.1) |
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 #3A181B | 15.83:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #3A181B | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #3A181B text on white | 15.83:1 | AAA | Lc 102.6 | Preferred for body text |
| #3A181B text on black | 1.32:1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E6
oklch(93.6% 0.019 13.4)
-
Step 200
200
#F0D0D1
oklch(88.5% 0.036 15.7)
-
Step 300
300
#E7B0B3
oklch(80.8% 0.064 14.9)
-
Step 400
400
#D9868B
oklch(70.8% 0.102 16.1)
-
Step 500
500
#CC656E
oklch(63.1% 0.131 16.1)
-
Step 600
600
#B74A56
oklch(55.6% 0.141 16.3)
-
Step 700
700
#9D3A46
oklch(49% 0.132 16.2)
-
Step 800
800
#80313A
oklch(42.7% 0.109 16.1)
-
Step 900
900
#672C32
oklch(37.7% 0.085 15.8)
-
Step 950
950 (this color)
#3A181B
oklch(26% 0.054 16.1)
#3A181B 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) | #1F1E1B | 0.058 |
| Deuteranopia (no green cones) | #28251A | 0.054 |
| Tritanopia (no blue cones) | #3F1419 | 0.014 |
| Achromatopsia (no color) | #222222 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A181B
#3A181B
oklch(26% 0.054 16.1)
- #002B2B
#002B2B
oklch(26.2% 0.045 194.8)
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 #3A181B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.041
- Dark Brown #341C02 ΔE 0.045
- Deep Brown #410200 ΔE 0.050
- Dark Maroon #3C0008 ΔE 0.051
- Mahogany #4A0100 ΔE 0.054
- Jet #212529 ΔE 0.060
- Dark Plum #3F012C ΔE 0.065
- Aubergine #3D0734 ΔE 0.068
Use #3A181B 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.