#400B09
Closest named color: Deep Brown (#410200). oklch(24.8% 0.082 27.2), rgb(64, 11, 9).
Aa
White text reads best on this color (16.53:1).
About this color
#400B09 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.082 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.017 away. White text reads best on it, at 16.53:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.26:1 |
| White text | 16.53:1 |
Values
| HEX | #400B09 |
| RGB | rgb(64, 11, 9) |
| HSL | hsl(2, 75%, 14%) |
| OKLCH | oklch(24.8% 0.082 27.2) |
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 #400B09 | 16.53:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #400B09 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #400B09 text on white | 16.53:1 | AAA | Lc 102.8 | Preferred for body text |
| #400B09 text on black | 1.26:1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCCC6
oklch(88.4% 0.054 26.7)
-
Step 300
300
#F9A99F
oklch(81% 0.096 27.2)
-
Step 400
400
#F2766A
oklch(70.8% 0.155 27.3)
-
Step 500
500
#E94941
oklch(63.1% 0.198 27.2)
-
Step 600
600
#D41A1F
oklch(55.5% 0.215 27.2)
-
Step 700
700
#B70011
oklch(49% 0.2 27.1)
-
Step 800
800
#950E12
oklch(42.7% 0.166 27.2)
-
Step 900
900
#771917
oklch(37.6% 0.129 26.9)
-
Step 950
950 (this color)
#400B09
oklch(24.8% 0.082 27.2)
#400B09 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) | #1B1708 | 0.087 |
| Deuteranopia (no green cones) | #282307 | 0.080 |
| Tritanopia (no blue cones) | #47000B | 0.022 |
| Achromatopsia (no color) | #1F1F1F | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400B09
#400B09
oklch(24.8% 0.082 27.2)
- #00272B
#00272B
oklch(24.9% 0.043 205.1)
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 #400B09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.017
- Mahogany #4A0100 ΔE 0.025
- Dark Maroon #3C0008 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.038
- Dark Brown #341C02 ΔE 0.051
- Dark Plum #3F012C ΔE 0.070
- Aubergine #3D0734 ΔE 0.080
- Eggplant #380835 ΔE 0.084
Use #400B09 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.