#400409
Closest named color: Deep Brown (#410200). oklch(24% 0.089 22.9), rgb(64, 4, 9).
Aa
White text reads best on this color (16.94:1).
About this color
#400409 is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.089 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.013 away. White text reads best on it, at 16.94:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.23:1 |
| White text | 16.94:1 |
Values
| HEX | #400409 |
| RGB | rgb(64, 4, 9) |
| HSL | hsl(355, 88%, 13%) |
| OKLCH | oklch(24% 0.089 22.9) |
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 #400409 | 16.94:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #400409 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #400409 text on white | 16.94:1 | AAA | Lc 102.9 | Preferred for body text |
| #400409 text on black | 1.23:1 | 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
#FEE2E0
oklch(93.5% 0.031 22.6)
-
Step 200
200
#FECBC7
oklch(88.6% 0.058 23.5)
-
Step 300
300
#FEA5A1
oklch(80.9% 0.106 22.5)
-
Step 400
400
#F86F6D
oklch(70.7% 0.169 23.2)
-
Step 500
500
#F03B47
oklch(63.1% 0.216 22.8)
-
Step 600
600
#D8002D
oklch(55.7% 0.225 22.8)
-
Step 700
700
#B70024
oklch(49.2% 0.198 23)
-
Step 800
800
#97001C
oklch(42.7% 0.172 22.9)
-
Step 900
900
#7C0E1A
oklch(37.8% 0.142 23)
-
Step 950
950 (this color)
#400409
oklch(24% 0.089 22.9)
#400409 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) | #171409 | 0.098 |
| Deuteranopia (no green cones) | #262107 | 0.089 |
| Tritanopia (no blue cones) | #470006 | 0.017 |
| Achromatopsia (no color) | #1D1D1D | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400409
#400409
oklch(24% 0.089 22.9)
- #002528
#002528
oklch(24.1% 0.041 202.8)
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 #400409, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.013
- Dark Maroon #3C0008 ΔE 0.015
- Mahogany #4A0100 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.050
- Dark Brown #341C02 ΔE 0.062
- Dark Plum #3F012C ΔE 0.065
- Aubergine #3D0734 ΔE 0.077
- Eggplant #380835 ΔE 0.081
Use #400409 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.