#3F0D09
Closest named color: Deep Brown (#410200). oklch(24.8% 0.078 28.6), rgb(63, 13, 9).
Aa
White text reads best on this color (16.49:1).
About this color
#3F0D09 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.078 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.019 away. White text reads best on it, at 16.49:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.27:1 |
| White text | 16.49:1 |
Values
| HEX | #3F0D09 |
| RGB | rgb(63, 13, 9) |
| HSL | hsl(4, 75%, 14%) |
| OKLCH | oklch(24.8% 0.078 28.6) |
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 #3F0D09 | 16.49:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #3F0D09 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #3F0D09 text on white | 16.49:1 | AAA | Lc 102.9 | Preferred for body text |
| #3F0D09 text on black | 1.27:1 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#FACDC6
oklch(88.5% 0.052 28.5)
-
Step 300
300
#F7AA9F
oklch(80.9% 0.093 28.3)
-
Step 400
400
#EF786A
oklch(70.7% 0.149 28.3)
-
Step 500
500
#E54E41
oklch(63% 0.189 28.5)
-
Step 600
600
#D1261E
oklch(55.6% 0.206 28.8)
-
Step 700
700
#B41310
oklch(49% 0.191 28.7)
-
Step 800
800
#921712
oklch(42.6% 0.158 28.6)
-
Step 900
900
#761D17
oklch(37.8% 0.124 28.4)
-
Step 950
950 (this color)
#3F0D09
oklch(24.8% 0.078 28.6)
#3F0D09 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) | #1B1808 | 0.084 |
| Deuteranopia (no green cones) | #282307 | 0.076 |
| Tritanopia (no blue cones) | #46010C | 0.025 |
| Achromatopsia (no color) | #1F1F1F | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0D09
#3F0D09
oklch(24.8% 0.078 28.6)
- #00272C
#00272C
oklch(24.9% 0.043 207.6)
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 #3F0D09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.019
- Mahogany #4A0100 ΔE 0.028
- Dark Maroon #3C0008 ΔE 0.029
- Chocolate Brown #411900 ΔE 0.035
- Dark Brown #341C02 ΔE 0.047
- Dark Plum #3F012C ΔE 0.072
- Aubergine #3D0734 ΔE 0.081
- Eggplant #380835 ΔE 0.085
Use #3F0D09 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.