#330307
Closest named color: Dark Maroon (#3C0008). oklch(20.8% 0.076 21.7), rgb(51, 3, 7).
Aa
White text reads best on this color (18.15:1).
About this color
#330307 is a very dark, moderately saturated red. In OKLCH its lightness is 21%, its chroma 0.076 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.022 away. White text reads best on it, at 18.15:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.15:1 |
| White text | 18.15:1 |
Values
| HEX | #330307 |
| RGB | rgb(51, 3, 7) |
| HSL | hsl(355, 89%, 11%) |
| OKLCH | oklch(20.8% 0.076 21.7) |
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 #330307 | 18.15:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #330307 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #330307 text on white | 18.15:1 | AAA | Lc 104.1 | Preferred for body text |
| #330307 text on black | 1.15:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CDCA
oklch(88.5% 0.05 22.7)
-
Step 300
300
#F6AAA7
oklch(81% 0.09 21.8)
-
Step 400
400
#ED7878
oklch(70.7% 0.145 21.4)
-
Step 500
500
#E44E55
oklch(63.2% 0.186 21.6)
-
Step 600
600
#CF273A
oklch(55.6% 0.201 21.7)
-
Step 700
700
#B3152C
oklch(49.2% 0.187 21.8)
-
Step 800
800
#911725
oklch(42.7% 0.155 21.8)
-
Step 900
900
#741D23
oklch(37.6% 0.12 21.5)
-
Step 950
950 (this color)
#330307
oklch(20.8% 0.076 21.7)
#330307 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) | #110F07 | 0.084 |
| Deuteranopia (no green cones) | #1D1906 | 0.076 |
| Tritanopia (no blue cones) | #390005 | 0.015 |
| Achromatopsia (no color) | #161616 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #330307
#330307
oklch(20.8% 0.076 21.7)
- #001D1F
#001D1F
oklch(21% 0.036 201.2)
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 #330307, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.022
- Deep Brown #410200 ΔE 0.037
- Mahogany #4A0100 ΔE 0.058
- Very Dark Brown #1D0200 ΔE 0.063
- Dark Brown #341C02 ΔE 0.069
- Chocolate Brown #411900 ΔE 0.071
- Dark Plum #3F012C ΔE 0.073
- Aubergine #3D0734 ΔE 0.084
Use #330307 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.