#39040B
Closest named color: Dark Maroon (#3C0008). oklch(22.4% 0.081 19.4), rgb(57, 4, 11).
Aa
White text reads best on this color (17.55:1).
About this color
#39040B is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.081 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.009 away. White text reads best on it, at 17.55:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.19:1 |
| White text | 17.55:1 |
Values
| HEX | #39040B |
| RGB | rgb(57, 4, 11) |
| HSL | hsl(352, 87%, 12%) |
| OKLCH | oklch(22.4% 0.081 19.4) |
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 #39040B | 17.55:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #39040B | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #39040B text on white | 17.55:1 | AAA | Lc 103.6 | Preferred for body text |
| #39040B 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCB
oklch(88.6% 0.053 19.6)
-
Step 300
300
#F9A7A7
oklch(80.8% 0.097 19.4)
-
Step 400
400
#F17479
oklch(70.7% 0.154 19.4)
-
Step 500
500
#E84757
oklch(63.1% 0.197 19.4)
-
Step 600
600
#D4153C
oklch(55.7% 0.215 19.5)
-
Step 700
700
#B6002F
oklch(49.1% 0.197 19.5)
-
Step 800
800
#940B27
oklch(42.6% 0.165 19.5)
-
Step 900
900
#771824
oklch(37.7% 0.128 19.5)
-
Step 950
950 (this color)
#39040B
oklch(22.4% 0.081 19.4)
#39040B 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) | #14120B | 0.089 |
| Deuteranopia (no green cones) | #211D09 | 0.082 |
| Tritanopia (no blue cones) | #400007 | 0.017 |
| Achromatopsia (no color) | #191919 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39040B
#39040B
oklch(22.4% 0.081 19.4)
- #002122
#002122
oklch(22.5% 0.038 197.7)
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 #39040B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.009
- Deep Brown #410200 ΔE 0.025
- Mahogany #4A0100 ΔE 0.044
- Chocolate Brown #411900 ΔE 0.061
- Dark Plum #3F012C ΔE 0.063
- Dark Brown #341C02 ΔE 0.065
- Aubergine #3D0734 ΔE 0.075
- Eggplant #380835 ΔE 0.077
Use #39040B 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.