#390004
Closest named color: Dark Maroon (#3C0008). oklch(21.7% 0.088 24.2), rgb(57, 0, 4).
Aa
White text reads best on this color (17.86:1).
About this color
#390004 is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.088 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.010 away. White text reads best on it, at 17.86:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.17:1 |
| White text | 17.86:1 |
Values
| HEX | #390004 |
| RGB | rgb(57, 0, 4) |
| HSL | hsl(356, 100%, 11%) |
| OKLCH | oklch(21.7% 0.088 24.2) |
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 #390004 | 17.86:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #390004 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #390004 text on white | 17.86:1 | AAA | Lc 103.6 | Preferred for body text |
| #390004 text on black | 1.17:1 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE3E0
oklch(93.7% 0.03 25.3)
-
Step 200
200
#FDCBC7
oklch(88.5% 0.057 23.6)
-
Step 300
300
#FDA6A0
oklch(80.9% 0.104 23.9)
-
Step 400
400
#F7706C
oklch(70.7% 0.167 24)
-
Step 500
500
#EF3E44
oklch(63.1% 0.213 24.2)
-
Step 600
600
#D80027
oklch(55.6% 0.225 24.2)
-
Step 700
700
#B7001F
oklch(49.1% 0.199 24.3)
-
Step 800
800
#970018
oklch(42.6% 0.173 24.2)
-
Step 900
900
#7B1119
oklch(37.7% 0.139 24)
-
Step 950
950 (this color)
#390004
oklch(21.7% 0.088 24.2)
#390004 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) | #120F04 | 0.097 |
| Deuteranopia (no green cones) | #201C02 | 0.089 |
| Tritanopia (no blue cones) | #400002 | 0.019 |
| Achromatopsia (no color) | #171717 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #390004
#390004
oklch(21.7% 0.088 24.2)
- #001F22
#001F22
oklch(21.8% 0.037 203.9)
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 #390004, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.010
- Deep Brown #410200 ΔE 0.024
- Mahogany #4A0100 ΔE 0.045
- Chocolate Brown #411900 ΔE 0.065
- Dark Brown #341C02 ΔE 0.069
- Dark Plum #3F012C ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.075
- Aubergine #3D0734 ΔE 0.085
Use #390004 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.