#3A1103
Closest named color: Deep Brown (#410200). oklch(24.3% 0.07 39.8), rgb(58, 17, 3).
Aa
White text reads best on this color (16.64:1).
About this color
#3A1103 is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.070 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.029 away. White text reads best on it, at 16.64:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.070) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.26:1 |
| White text | 16.64:1 |
Values
| HEX | #3A1103 |
| RGB | rgb(58, 17, 3) |
| HSL | hsl(15, 90%, 12%) |
| OKLCH | oklch(24.3% 0.07 39.8) |
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 #3A1103 | 16.64:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #3A1103 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #3A1103 text on white | 16.64:1 | AAA | Lc 103.2 | Preferred for body text |
| #3A1103 text on black | 1.26:1 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DE
oklch(93.6% 0.024 40.3)
-
Step 200
200
#F5D0C3
oklch(88.6% 0.045 40.3)
-
Step 300
300
#F0AF99
oklch(80.9% 0.083 39.5)
-
Step 400
400
#E5825F
oklch(70.7% 0.132 40.1)
-
Step 500
500
#DA5D2E
oklch(63% 0.168 39.8)
-
Step 600
600
#C34200
oklch(55.6% 0.175 39.8)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#6F2709
oklch(37.6% 0.109 40)
-
Step 950
950 (this color)
#3A1103
oklch(24.3% 0.07 39.8)
#3A1103 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) | #1D1802 | 0.068 |
| Deuteranopia (no green cones) | #272202 | 0.063 |
| Tritanopia (no blue cones) | #41070E | 0.032 |
| Achromatopsia (no color) | #1E1E1E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A1103
#3A1103
oklch(24.3% 0.07 39.8)
- #00252E
#00252E
oklch(24.4% 0.044 217.9)
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 #3A1103, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.029
- Chocolate Brown #411900 ΔE 0.029
- Dark Brown #341C02 ΔE 0.032
- Dark Maroon #3C0008 ΔE 0.038
- Mahogany #4A0100 ΔE 0.041
- Jet #212529 ΔE 0.080
- Dark Plum #3F012C ΔE 0.085
- Aubergine #3D0734 ΔE 0.093
Use #3A1103 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.