#400A1D
Closest named color: Dark Maroon (#3C0008). oklch(25.2% 0.083 4.4), rgb(64, 10, 29).
Aa
White text reads best on this color (16.41:1).
About this color
#400A1D is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.083 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.037 away. White text reads best on it, at 16.41:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.27:1 |
| White text | 16.41:1 |
Values
| HEX | #400A1D |
| RGB | rgb(64, 10, 29) |
| HSL | hsl(339, 73%, 15%) |
| OKLCH | oklch(25.2% 0.083 4.4) |
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 #400A1D | 16.41:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #400A1D | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #400A1D text on white | 16.41:1 | AAA | Lc 102.7 | Preferred for body text |
| #400A1D 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE2E7
oklch(93.5% 0.029 4.5)
-
Step 200
200
#FACBD4
oklch(88.5% 0.054 5.4)
-
Step 300
300
#F7A6B9
oklch(80.9% 0.098 4.2)
-
Step 400
400
#EF7194
oklch(70.6% 0.158 4.5)
-
Step 500
500
#E5437A
oklch(63.1% 0.201 4.5)
-
Step 600
600
#D10B63
oklch(55.7% 0.22 4.6)
-
Step 700
700
#B20053
oklch(49.1% 0.198 4.4)
-
Step 800
800
#920443
oklch(42.6% 0.169 4.6)
-
Step 900
900
#761539
oklch(37.8% 0.133 4.4)
-
Step 950
950 (this color)
#400A1D
oklch(25.2% 0.083 4.4)
#400A1D 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) | #17191D | 0.094 |
| Deuteranopia (no green cones) | #25231C | 0.084 |
| Tritanopia (no blue cones) | #460212 | 0.022 |
| Achromatopsia (no color) | #1F1F1F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400A1D
#400A1D
oklch(25.2% 0.083 4.4)
- #002925
#002925
oklch(25.3% 0.045 185)
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 #400A1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.037
- Dark Plum #3F012C ΔE 0.038
- Deep Brown #410200 ΔE 0.044
- Mahogany #4A0100 ΔE 0.046
- Aubergine #3D0734 ΔE 0.047
- Eggplant #380835 ΔE 0.053
- Chocolate Brown #411900 ΔE 0.063
- Eggplant Purple #430541 ΔE 0.070
Use #400A1D 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.