#400D04
Closest named color: Deep Brown (#410200). oklch(24.9% 0.081 33.4), rgb(64, 13, 4).
Aa
White text reads best on this color (16.44:1).
About this color
#400D04 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.081 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.018 away. White text reads best on it, at 16.44:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.27:1 |
| White text | 16.44:1 |
Values
| HEX | #400D04 |
| RGB | rgb(64, 13, 4) |
| HSL | hsl(9, 88%, 13%) |
| OKLCH | oklch(24.9% 0.081 33.4) |
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 #400D04 | 16.44:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #400D04 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #400D04 text on white | 16.44:1 | AAA | Lc 102.8 | Preferred for body text |
| #400D04 text on black | 1.27:1 | 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
#FCE4DE
oklch(93.7% 0.028 34.3)
-
Step 200
200
#FACDC3
oklch(88.5% 0.053 32.7)
-
Step 300
300
#F8AA98
oklch(80.9% 0.096 33.5)
-
Step 400
400
#F0785F
oklch(70.6% 0.153 33.1)
-
Step 500
500
#E74D2D
oklch(63% 0.196 33.5)
-
Step 600
600
#CF2C00
oklch(55.6% 0.203 33.4)
-
Step 700
700
#AF2400
oklch(49.1% 0.179 33.5)
-
Step 800
800
#911C00
oklch(42.7% 0.156 33.4)
-
Step 900
900
#771C09
oklch(37.7% 0.128 33.2)
-
Step 950
950 (this color)
#400D04
oklch(24.9% 0.081 33.4)
#400D04 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 | 0.085 |
| Deuteranopia (no green cones) | #292302 | 0.076 |
| Tritanopia (no blue cones) | #47000B | 0.029 |
| Achromatopsia (no color) | #1F1F1F | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400D04
#400D04
oklch(24.9% 0.081 33.4)
- #00272E
#00272E
oklch(25% 0.044 212.5)
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 #400D04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.018
- Mahogany #4A0100 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.031
- Dark Maroon #3C0008 ΔE 0.032
- Dark Brown #341C02 ΔE 0.045
- Dark Plum #3F012C ΔE 0.079
- Aubergine #3D0734 ΔE 0.088
- Burgundy #610023 ΔE 0.090
Use #400D04 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.