#3A0318
Closest named color: Dark Maroon (#3C0008). oklch(22.9% 0.086 3.9), rgb(58, 3, 24).
Aa
White text reads best on this color (17.41:1).
About this color
#3A0318 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.086 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.026 away. White text reads best on it, at 17.41:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.20:1 |
| White text | 17.41:1 |
Values
| HEX | #3A0318 |
| RGB | rgb(58, 3, 24) |
| HSL | hsl(337, 90%, 12%) |
| OKLCH | oklch(22.9% 0.086 3.9) |
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 #3A0318 | 17.41:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #3A0318 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #3A0318 text on white | 17.41:1 | AAA | Lc 103.4 | Preferred for body text |
| #3A0318 text on black | 1.20:1 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE2E7
oklch(93.5% 0.029 4.5)
-
Step 200
200
#FBCAD5
oklch(88.5% 0.057 3.3)
-
Step 300
300
#F9A5B9
oklch(81% 0.102 4.1)
-
Step 400
400
#F17095
oklch(70.8% 0.162 4.1)
-
Step 500
500
#E73F7B
oklch(63% 0.207 3.9)
-
Step 600
600
#D20064
oklch(55.6% 0.224 4.1)
-
Step 700
700
#B20054
oklch(49.2% 0.198 3.9)
-
Step 800
800
#930044
oklch(42.7% 0.172 4)
-
Step 900
900
#771339
oklch(37.8% 0.135 4.4)
-
Step 950
950 (this color)
#3A0318
oklch(22.9% 0.086 3.9)
#3A0318 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) | #111318 | 0.097 |
| Deuteranopia (no green cones) | #201E17 | 0.087 |
| Tritanopia (no blue cones) | #40000C | 0.025 |
| Achromatopsia (no color) | #1A1A1A | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A0318
#3A0318
oklch(22.9% 0.086 3.9)
- #00231F
#00231F
oklch(23% 0.041 183.9)
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 #3A0318, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.026
- Dark Plum #3F012C ΔE 0.040
- Deep Brown #410200 ΔE 0.043
- Aubergine #3D0734 ΔE 0.053
- Mahogany #4A0100 ΔE 0.055
- Eggplant #380835 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.074
- Chocolate Brown #411900 ΔE 0.074
Use #3A0318 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.