#391004
Closest named color: Deep Brown (#410200). oklch(23.9% 0.069 37.8), rgb(57, 16, 4).
Aa
White text reads best on this color (16.80:1).
About this color
#391004 is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.069 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.028 away. White text reads best on it, at 16.80:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.24:1 |
| White text | 16.80:1 |
Values
| HEX | #391004 |
| RGB | rgb(57, 16, 4) |
| HSL | hsl(14, 87%, 12%) |
| OKLCH | oklch(23.9% 0.069 37.8) |
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 #391004 | 16.80:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #391004 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #391004 text on white | 16.80:1 | AAA | Lc 103.3 | Preferred for body text |
| #391004 text on black | 1.24:1 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F5D0C4
oklch(88.6% 0.045 38.8)
-
Step 300
300
#F0AF9B
oklch(81% 0.082 37.8)
-
Step 400
400
#E58163
oklch(70.6% 0.131 37.5)
-
Step 500
500
#DA5D35
oklch(63% 0.166 37.9)
-
Step 600
600
#C63E03
oklch(55.7% 0.181 37.9)
-
Step 700
700
#A83200
oklch(49.1% 0.162 37.8)
-
Step 800
800
#8A2801
oklch(42.6% 0.139 37.8)
-
Step 900
900
#6F270F
oklch(37.7% 0.108 37.9)
-
Step 950
950 (this color)
#391004
oklch(23.9% 0.069 37.8)
#391004 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) | #1C1803 | 0.068 |
| Deuteranopia (no green cones) | #262103 | 0.063 |
| Tritanopia (no blue cones) | #40060D | 0.030 |
| Achromatopsia (no color) | #1D1D1D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #391004
#391004
oklch(23.9% 0.069 37.8)
- #00242D
#00242D
oklch(24% 0.043 218.3)
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 #391004, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.028
- Chocolate Brown #411900 ΔE 0.033
- Dark Brown #341C02 ΔE 0.035
- Dark Maroon #3C0008 ΔE 0.035
- Mahogany #4A0100 ΔE 0.042
- Jet #212529 ΔE 0.080
- Dark Plum #3F012C ΔE 0.083
- Very Dark Brown #1D0200 ΔE 0.090
Use #391004 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.