#3A0603
Closest named color: Deep Brown (#410200). oklch(22.8% 0.081 29.9), rgb(58, 6, 3).
Aa
White text reads best on this color (17.39:1).
About this color
#3A0603 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.081 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.017 away. White text reads best on it, at 17.39:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.20:1 |
| White text | 17.39:1 |
Values
| HEX | #3A0603 |
| RGB | rgb(58, 6, 3) |
| HSL | hsl(3, 90%, 12%) |
| OKLCH | oklch(22.8% 0.081 29.9) |
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 #3A0603 | 17.39:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #3A0603 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #3A0603 text on white | 17.39:1 | AAA | Lc 103.5 | Preferred for body text |
| #3A0603 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC5
oklch(88.6% 0.054 29.6)
-
Step 300
300
#F9A99C
oklch(80.9% 0.097 29.5)
-
Step 400
400
#F17765
oklch(70.7% 0.154 30)
-
Step 500
500
#E84B39
oklch(63.1% 0.196 30)
-
Step 600
600
#D41E0F
oklch(55.6% 0.214 29.9)
-
Step 700
700
#B60A00
oklch(49% 0.197 29.9)
-
Step 800
800
#941107
oklch(42.6% 0.165 29.9)
-
Step 900
900
#771B11
oklch(37.7% 0.128 30.2)
-
Step 950
950 (this color)
#3A0603
oklch(22.8% 0.081 29.9)
#3A0603 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) | #161302 | 0.088 |
| Deuteranopia (no green cones) | #231E02 | 0.078 |
| Tritanopia (no blue cones) | #410006 | 0.020 |
| Achromatopsia (no color) | #1A1A1A | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A0603
#3A0603
oklch(22.8% 0.081 29.9)
- #002126
#002126
oklch(22.7% 0.039 209.2)
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 #3A0603, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.017
- Dark Maroon #3C0008 ΔE 0.017
- Mahogany #4A0100 ΔE 0.038
- Chocolate Brown #411900 ΔE 0.050
- Dark Brown #341C02 ΔE 0.054
- Dark Plum #3F012C ΔE 0.076
- Very Dark Brown #1D0200 ΔE 0.081
- Aubergine #3D0734 ΔE 0.087
Use #3A0603 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.