#3D181A
Closest named color: Chocolate Brown (#411900). oklch(26.5% 0.058 18.6), rgb(61, 24, 26).
Aa
White text reads best on this color (15.62:1).
About this color
#3D181A is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.058 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.037 away. White text reads best on it, at 15.62:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.34:1 |
| White text | 15.62:1 |
Values
| HEX | #3D181A |
| RGB | rgb(61, 24, 26) |
| HSL | hsl(357, 44%, 17%) |
| OKLCH | oklch(26.5% 0.058 18.6) |
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 #3D181A | 15.62:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #3D181A | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #3D181A text on white | 15.62:1 | AAA | Lc 102.3 | Preferred for body text |
| #3D181A text on black | 1.34:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F7E5E5
oklch(93.6% 0.02 17.5)
-
Step 200
200
#F2D0CF
oklch(88.6% 0.038 19.9)
-
Step 300
300
#EAAFAF
oklch(80.8% 0.069 18.7)
-
Step 400
400
#DD8386
oklch(70.7% 0.111 18.1)
-
Step 500
500
#D16168
oklch(63.1% 0.142 18.2)
-
Step 600
600
#BC454F
oklch(55.6% 0.153 18.7)
-
Step 700
700
#A23640
oklch(49.2% 0.142 18.8)
-
Step 800
800
#832D35
oklch(42.6% 0.118 18.3)
-
Step 900
900
#6A2A2E
oklch(37.8% 0.092 18.8)
-
Step 950
950 (this color)
#3D181A
oklch(26.5% 0.058 18.6)
#3D181A 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) | #201F1A | 0.063 |
| Deuteranopia (no green cones) | #292619 | 0.058 |
| Tritanopia (no blue cones) | #431319 | 0.016 |
| Achromatopsia (no color) | #232323 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D181A
#3D181A
oklch(26.5% 0.058 18.6)
- #002C2D
#002C2D
oklch(26.6% 0.045 197.1)
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 #3D181A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.037
- Dark Brown #341C02 ΔE 0.046
- Deep Brown #410200 ΔE 0.048
- Mahogany #4A0100 ΔE 0.049
- Dark Maroon #3C0008 ΔE 0.051
- Jet #212529 ΔE 0.065
- Dark Plum #3F012C ΔE 0.066
- Aubergine #3D0734 ΔE 0.069
Use #3D181A 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.