#3A0403
Closest named color: Dark Maroon (#3C0008). oklch(22.5% 0.084 28.4), rgb(58, 4, 3).
Aa
White text reads best on this color (17.52:1).
About this color
#3A0403 is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.084 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.014 away. White text reads best on it, at 17.52:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.19:1 |
| White text | 17.52:1 |
Values
| HEX | #3A0403 |
| RGB | rgb(58, 4, 3) |
| HSL | hsl(1, 90%, 12%) |
| OKLCH | oklch(22.5% 0.084 28.4) |
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 #3A0403 | 17.52:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #3A0403 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #3A0403 text on white | 17.52:1 | AAA | Lc 103.5 | Preferred for body text |
| #3A0403 text on black | 1.19:1 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FAA89C
oklch(80.8% 0.099 28.6)
-
Step 400
400
#F37566
oklch(70.7% 0.158 28.6)
-
Step 500
500
#EB473B
oklch(63.2% 0.203 28.4)
-
Step 600
600
#D61314
oklch(55.6% 0.22 28.4)
-
Step 700
700
#B80007
oklch(49.2% 0.201 28.4)
-
Step 800
800
#96090A
oklch(42.7% 0.169 28.4)
-
Step 900
900
#791813
oklch(37.8% 0.132 28.4)
-
Step 950
950 (this color)
#3A0403
oklch(22.5% 0.084 28.4)
#3A0403 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) | #151202 | 0.091 |
| Deuteranopia (no green cones) | #221E01 | 0.084 |
| Tritanopia (no blue cones) | #410004 | 0.017 |
| Achromatopsia (no color) | #191919 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A0403
#3A0403
oklch(22.5% 0.084 28.4)
- #002125
#002125
oklch(22.6% 0.039 206.4)
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 #3A0403, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.014
- Deep Brown #410200 ΔE 0.017
- Mahogany #4A0100 ΔE 0.039
- Chocolate Brown #411900 ΔE 0.054
- Dark Brown #341C02 ΔE 0.059
- Dark Plum #3F012C ΔE 0.075
- Very Dark Brown #1D0200 ΔE 0.080
- Aubergine #3D0734 ΔE 0.087
Use #3A0403 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.