#3F1718
Closest named color: Chocolate Brown (#411900). oklch(26.6% 0.063 20.8), rgb(63, 23, 24).
Aa
White text reads best on this color (15.58:1).
About this color
#3F1718 is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.063 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.035 away. White text reads best on it, at 15.58:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.34:1 |
| White text | 15.58:1 |
Values
| HEX | #3F1718 |
| RGB | rgb(63, 23, 24) |
| HSL | hsl(358, 47%, 17%) |
| OKLCH | oklch(26.6% 0.063 20.8) |
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 #3F1718 | 15.58:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #3F1718 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #3F1718 text on white | 15.58:1 | AAA | Lc 102.2 | Preferred for body text |
| #3F1718 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E4
oklch(93.7% 0.021 21.2)
-
Step 200
200
#F4CFCD
oklch(88.5% 0.042 21.6)
-
Step 300
300
#EDAEAC
oklch(80.9% 0.074 20.9)
-
Step 400
400
#E18180
oklch(70.7% 0.119 21.1)
-
Step 500
500
#D65D61
oklch(63.1% 0.153 20.5)
-
Step 600
600
#C13F48
oklch(55.6% 0.166 20.5)
-
Step 700
700
#A63039
oklch(49.1% 0.153 20.8)
-
Step 800
800
#87292F
oklch(42.7% 0.128 20.9)
-
Step 900
900
#6D272A
oklch(37.7% 0.1 20.7)
-
Step 950
950 (this color)
#3F1718
oklch(26.6% 0.063 20.8)
#3F1718 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) | #201E18 | 0.068 |
| Deuteranopia (no green cones) | #2A2717 | 0.063 |
| Tritanopia (no blue cones) | #451118 | 0.018 |
| Achromatopsia (no color) | #242424 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F1718
#3F1718
oklch(26.6% 0.063 20.8)
- #002C2F
#002C2F
oklch(26.7% 0.045 201.9)
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 #3F1718, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.035
- Mahogany #4A0100 ΔE 0.044
- Deep Brown #410200 ΔE 0.044
- Dark Brown #341C02 ΔE 0.046
- Dark Maroon #3C0008 ΔE 0.050
- Dark Plum #3F012C ΔE 0.067
- Jet #212529 ΔE 0.070
- Aubergine #3D0734 ΔE 0.071
Use #3F1718 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.