#350303
Closest named color: Dark Maroon (#3C0008). oklch(21.2% 0.079 27.4), rgb(53, 3, 3).
Aa
White text reads best on this color (18.01:1).
About this color
#350303 is a very dark, moderately saturated red. In OKLCH its lightness is 21%, its chroma 0.079 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.020 away. White text reads best on it, at 18.01:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.16:1 |
| White text | 18.01:1 |
Values
| HEX | #350303 |
| RGB | rgb(53, 3, 3) |
| HSL | hsl(0, 89%, 11%) |
| OKLCH | oklch(21.2% 0.079 27.4) |
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 #350303 | 18.01:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #350303 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #350303 text on white | 18.01:1 | AAA | Lc 104.0 | Preferred for body text |
| #350303 text on black | 1.16:1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FACDC6
oklch(88.5% 0.052 28.5)
-
Step 300
300
#F8A99F
oklch(80.9% 0.095 27.3)
-
Step 400
400
#F0776B
oklch(70.7% 0.151 27.3)
-
Step 500
500
#E74C43
oklch(63.2% 0.193 27.4)
-
Step 600
600
#D22222
oklch(55.6% 0.209 27.5)
-
Step 700
700
#B50D14
oklch(49% 0.194 27.4)
-
Step 800
800
#931414
oklch(42.7% 0.161 27.5)
-
Step 900
900
#761C18
oklch(37.7% 0.125 27.5)
-
Step 950
950 (this color)
#350303
oklch(21.2% 0.079 27.4)
#350303 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) | #120F03 | 0.087 |
| Deuteranopia (no green cones) | #1F1A02 | 0.077 |
| Tritanopia (no blue cones) | #3C0004 | 0.017 |
| Achromatopsia (no color) | #161616 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #350303
#350303
oklch(21.2% 0.079 27.4)
- #001D21
#001D21
oklch(21.1% 0.036 207.4)
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 #350303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.020
- Deep Brown #410200 ΔE 0.030
- Mahogany #4A0100 ΔE 0.052
- Dark Brown #341C02 ΔE 0.064
- Chocolate Brown #411900 ΔE 0.065
- Very Dark Brown #1D0200 ΔE 0.066
- Dark Plum #3F012C ΔE 0.078
- Aubergine #3D0734 ΔE 0.090
Use #350303 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.