#3B0903
Closest named color: Deep Brown (#410200). oklch(23.4% 0.079 32.1), rgb(59, 9, 3).
Aa
White text reads best on this color (17.12:1).
About this color
#3B0903 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.079 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.016 away. White text reads best on it, at 17.12:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.22:1 |
| White text | 17.12:1 |
Values
| HEX | #3B0903 |
| RGB | rgb(59, 9, 3) |
| HSL | hsl(6, 90%, 12%) |
| OKLCH | oklch(23.4% 0.079 32.1) |
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 #3B0903 | 17.12:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #3B0903 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #3B0903 text on white | 17.12:1 | AAA | Lc 103.4 | Preferred for body text |
| #3B0903 text on black | 1.22:1 | 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
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC4
oklch(88.5% 0.053 31.3)
-
Step 300
300
#F7AA9B
oklch(80.8% 0.094 31.4)
-
Step 400
400
#EF7963
oklch(70.7% 0.15 32)
-
Step 500
500
#E64F35
oklch(63.2% 0.192 32.2)
-
Step 600
600
#D12603
oklch(55.5% 0.208 32.1)
-
Step 700
700
#B21D00
oklch(49.1% 0.186 32)
-
Step 800
800
#931701
oklch(42.7% 0.161 32)
-
Step 900
900
#761D0E
oklch(37.7% 0.126 32.1)
-
Step 950
950 (this color)
#3B0903
oklch(23.4% 0.079 32.1)
#3B0903 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) | #181502 | 0.085 |
| Deuteranopia (no green cones) | #252002 | 0.076 |
| Tritanopia (no blue cones) | #420008 | 0.024 |
| Achromatopsia (no color) | #1C1C1C | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B0903
#3B0903
oklch(23.4% 0.079 32.1)
- #002329
#002329
oklch(23.5% 0.041 211.3)
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 #3B0903, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.016
- Dark Maroon #3C0008 ΔE 0.022
- Mahogany #4A0100 ΔE 0.035
- Chocolate Brown #411900 ΔE 0.043
- Dark Brown #341C02 ΔE 0.049
- Dark Plum #3F012C ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.086
- Aubergine #3D0734 ΔE 0.088
Use #3B0903 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.