#3A171C
Closest named color: Chocolate Brown (#411900). oklch(25.9% 0.056 12.9), rgb(58, 23, 28).
Aa
White text reads best on this color (15.91:1).
About this color
#3A171C is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.056 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.044 away. White text reads best on it, at 15.91:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.31:1 |
| White text | 15.91:1 |
Values
| HEX | #3A171C |
| RGB | rgb(58, 23, 28) |
| HSL | hsl(351, 43%, 16%) |
| OKLCH | oklch(25.9% 0.056 12.9) |
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 #3A171C | 15.91:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #3A171C | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #3A171C text on white | 15.91:1 | AAA | Lc 102.6 | Preferred for body text |
| #3A171C text on black | 1.31:1 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F6E5E6
oklch(93.6% 0.019 13.4)
-
Step 200
200
#F0D0D2
oklch(88.5% 0.036 13.6)
-
Step 300
300
#E8B0B5
oklch(81% 0.066 12.7)
-
Step 400
400
#DA848E
oklch(70.7% 0.106 12.6)
-
Step 500
500
#CD6372
oklch(63.1% 0.135 12.9)
-
Step 600
600
#B8475B
oklch(55.5% 0.147 12.5)
-
Step 700
700
#9E384A
oklch(49% 0.136 13.1)
-
Step 800
800
#812F3D
oklch(42.7% 0.113 13)
-
Step 900
900
#682B34
oklch(37.7% 0.088 13.2)
-
Step 950
950 (this color)
#3A171C
oklch(25.9% 0.056 12.9)
#3A171C 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) | #1E1E1C | 0.061 |
| Deuteranopia (no green cones) | #27251B | 0.057 |
| Tritanopia (no blue cones) | #3F1319 | 0.014 |
| Achromatopsia (no color) | #222222 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A171C
#3A171C
oklch(25.9% 0.056 12.9)
- #002A29
#002A29
oklch(25.8% 0.044 192.3)
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 #3A171C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.044
- Dark Brown #341C02 ΔE 0.048
- Deep Brown #410200 ΔE 0.049
- Dark Maroon #3C0008 ΔE 0.049
- Mahogany #4A0100 ΔE 0.054
- Dark Plum #3F012C ΔE 0.061
- Jet #212529 ΔE 0.062
- Aubergine #3D0734 ΔE 0.064
Use #3A171C 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.