#400D01
Closest named color: Deep Brown (#410200). oklch(24.9% 0.082 36.4), rgb(64, 13, 1).
Aa
White text reads best on this color (16.45:1).
About this color
#400D01 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.082 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.019 away. White text reads best on it, at 16.45:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.27:1 |
| White text | 16.45:1 |
Values
| HEX | #400D01 |
| RGB | rgb(64, 13, 1) |
| HSL | hsl(11, 97%, 13%) |
| OKLCH | oklch(24.9% 0.082 36.4) |
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 #400D01 | 16.45:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #400D01 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #400D01 text on white | 16.45:1 | AAA | Lc 102.8 | Preferred for body text |
| #400D01 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
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FACDC1
oklch(88.4% 0.054 35.4)
-
Step 300
300
#F8AA95
oklch(80.8% 0.097 35.7)
-
Step 400
400
#F17958
oklch(70.8% 0.155 36.3)
-
Step 500
500
#E84E1D
oklch(63.2% 0.199 36.6)
-
Step 600
600
#C93900
oklch(55.6% 0.188 36.5)
-
Step 700
700
#AA2E00
oklch(49% 0.167 36.3)
-
Step 800
800
#8D2500
oklch(42.8% 0.145 36.5)
-
Step 900
900
#761D00
oklch(37.6% 0.128 36.3)
-
Step 950
950 (this color)
#400D01
oklch(24.9% 0.082 36.4)
#400D01 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) | #1D1800 | 0.083 |
| Deuteranopia (no green cones) | #292300 | 0.075 |
| Tritanopia (no blue cones) | #48000A | 0.031 |
| Achromatopsia (no color) | #1F1F1F | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400D01
#400D01
oklch(24.9% 0.082 36.4)
- #00262F
#00262F
oklch(24.8% 0.044 217.5)
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 #400D01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.019
- Mahogany #4A0100 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.029
- Dark Maroon #3C0008 ΔE 0.035
- Dark Brown #341C02 ΔE 0.043
- Dark Plum #3F012C ΔE 0.083
- Jet #212529 ΔE 0.091
- Burgundy #610023 ΔE 0.092
Use #400D01 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.