#390904
Closest named color: Deep Brown (#410200). oklch(23% 0.076 31.1), rgb(57, 9, 4).
Aa
White text reads best on this color (17.28:1).
About this color
#390904 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.076 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.020 away. White text reads best on it, at 17.28:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.21:1 |
| White text | 17.28:1 |
Values
| HEX | #390904 |
| RGB | rgb(57, 9, 4) |
| HSL | hsl(6, 87%, 12%) |
| OKLCH | oklch(23% 0.076 31.1) |
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 #390904 | 17.28:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #390904 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #390904 text on white | 17.28:1 | AAA | Lc 103.6 | Preferred for body text |
| #390904 text on black | 1.21:1 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CEC5
oklch(88.6% 0.05 31.8)
-
Step 300
300
#F5AB9D
oklch(80.8% 0.09 31)
-
Step 400
400
#ED7B67
oklch(70.8% 0.145 31.3)
-
Step 500
500
#E3523C
oklch(63.1% 0.184 31.3)
-
Step 600
600
#CF2C16
oklch(55.6% 0.201 31.1)
-
Step 700
700
#B21B05
oklch(49% 0.187 31.1)
-
Step 800
800
#911B0C
oklch(42.7% 0.155 30.9)
-
Step 900
900
#741F13
oklch(37.6% 0.121 31.1)
-
Step 950
950 (this color)
#390904
oklch(23% 0.076 31.1)
#390904 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) | #181403 | 0.080 |
| Deuteranopia (no green cones) | #231F03 | 0.075 |
| Tritanopia (no blue cones) | #400008 | 0.024 |
| Achromatopsia (no color) | #1B1B1B | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #390904
#390904
oklch(23% 0.076 31.1)
- #002227
#002227
oklch(23.1% 0.04 208.9)
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 #390904, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.020
- Dark Maroon #3C0008 ΔE 0.021
- Mahogany #4A0100 ΔE 0.040
- Chocolate Brown #411900 ΔE 0.047
- Dark Brown #341C02 ΔE 0.049
- Dark Plum #3F012C ΔE 0.077
- Very Dark Brown #1D0200 ΔE 0.082
- Aubergine #3D0734 ΔE 0.087
Use #390904 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.