#3F090E
Closest named color: Deep Brown (#410200). oklch(24.4% 0.082 21), rgb(63, 9, 14).
Aa
White text reads best on this color (16.70:1).
About this color
#3F090E is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.082 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.020 away. White text reads best on it, at 16.70:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.25:1 |
| White text | 16.70:1 |
Values
| HEX | #3F090E |
| RGB | rgb(63, 9, 14) |
| HSL | hsl(354, 75%, 14%) |
| OKLCH | oklch(24.4% 0.082 21) |
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 #3F090E | 16.70:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #3F090E | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #3F090E text on white | 16.70:1 | AAA | Lc 103.0 | Preferred for body text |
| #3F090E text on black | 1.25:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCA
oklch(88.5% 0.054 21.1)
-
Step 300
300
#F9A8A5
oklch(80.9% 0.096 21.7)
-
Step 400
400
#F27476
oklch(70.7% 0.155 20.9)
-
Step 500
500
#E94652
oklch(63.1% 0.199 21)
-
Step 600
600
#D41437
oklch(55.6% 0.216 20.9)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800
#950A23
oklch(42.7% 0.166 21.2)
-
Step 900
900
#771821
oklch(37.6% 0.129 21.3)
-
Step 950
950 (this color)
#3F090E
oklch(24.4% 0.082 21)
#3F090E 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) | #19160E | 0.089 |
| Deuteranopia (no green cones) | #26220C | 0.083 |
| Tritanopia (no blue cones) | #46000B | 0.019 |
| Achromatopsia (no color) | #1E1E1E | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F090E
#3F090E
oklch(24.4% 0.082 21)
- #002628
#002628
oklch(24.4% 0.042 200.1)
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 #3F090E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.020
- Dark Maroon #3C0008 ΔE 0.021
- Mahogany #4A0100 ΔE 0.030
- Chocolate Brown #411900 ΔE 0.046
- Dark Brown #341C02 ΔE 0.057
- Dark Plum #3F012C ΔE 0.061
- Aubergine #3D0734 ΔE 0.072
- Eggplant #380835 ΔE 0.076
Use #3F090E 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.