#3F0F03
Closest named color: Deep Brown (#410200). oklch(25% 0.078 36.2), rgb(63, 15, 3).
Aa
White text reads best on this color (16.39:1).
About this color
#3F0F03 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.078 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.022 away. White text reads best on it, at 16.39:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.28:1 |
| White text | 16.39:1 |
Values
| HEX | #3F0F03 |
| RGB | rgb(63, 15, 3) |
| HSL | hsl(12, 91%, 13%) |
| OKLCH | oklch(25% 0.078 36.2) |
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 #3F0F03 | 16.39:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #3F0F03 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #3F0F03 text on white | 16.39:1 | AAA | Lc 102.8 | Preferred for body text |
| #3F0F03 text on black | 1.28:1 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DE
oklch(93.6% 0.027 35)
-
Step 200
200
#F9CEC2
oklch(88.5% 0.052 36.1)
-
Step 300
300
#F6AC97
oklch(81% 0.093 36.5)
-
Step 400
400
#ED7B5C
oklch(70.6% 0.148 36.2)
-
Step 500
500
#E45228
oklch(63.1% 0.189 36.2)
-
Step 600
600
#C93800
oklch(55.5% 0.189 36.3)
-
Step 700
700
#AA2E00
oklch(49% 0.167 36.3)
-
Step 800
800
#8D2400
oklch(42.7% 0.146 36.1)
-
Step 900
900
#752005
oklch(37.8% 0.123 36.2)
-
Step 950
950 (this color)
#3F0F03
oklch(25% 0.078 36.2)
#3F0F03 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) | #1D1902 | 0.080 |
| Deuteranopia (no green cones) | #292302 | 0.071 |
| Tritanopia (no blue cones) | #46020C | 0.031 |
| Achromatopsia (no color) | #1F1F1F | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0F03
#3F0F03
oklch(25% 0.078 36.2)
- #00272F
#00272F
oklch(25.1% 0.044 214.9)
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 #3F0F03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.022
- Chocolate Brown #411900 ΔE 0.027
- Mahogany #4A0100 ΔE 0.030
- Dark Maroon #3C0008 ΔE 0.036
- Dark Brown #341C02 ΔE 0.040
- Dark Plum #3F012C ΔE 0.082
- Jet #212529 ΔE 0.087
- Aubergine #3D0734 ΔE 0.091
Use #3F0F03 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.