#400B05
Closest named color: Deep Brown (#410200). oklch(24.7% 0.083 31), rgb(64, 11, 5).
Aa
White text reads best on this color (16.56:1).
About this color
#400B05 is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.083 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.015 away. White text reads best on it, at 16.56:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.26:1 |
| White text | 16.56:1 |
Values
| HEX | #400B05 |
| RGB | rgb(64, 11, 5) |
| HSL | hsl(6, 86%, 14%) |
| OKLCH | oklch(24.7% 0.083 31) |
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 #400B05 | 16.56:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #400B05 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #400B05 text on white | 16.56:1 | AAA | Lc 102.8 | Preferred for body text |
| #400B05 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99A
oklch(80.9% 0.098 31)
-
Step 400
400
#F27662
oklch(70.7% 0.157 30.8)
-
Step 500
500
#E94934
oklch(63% 0.2 30.7)
-
Step 600
600
#D51B00
oklch(55.6% 0.217 30.9)
-
Step 700
700
#B41600
oklch(49.1% 0.191 31)
-
Step 800
800
#951000
oklch(42.7% 0.167 31)
-
Step 900
900
#781A0D
oklch(37.8% 0.131 31.2)
-
Step 950
950 (this color)
#400B05
oklch(24.7% 0.083 31)
#400B05 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) | #1B1704 | 0.088 |
| Deuteranopia (no green cones) | #282303 | 0.080 |
| Tritanopia (no blue cones) | #47000A | 0.024 |
| Achromatopsia (no color) | #1F1F1F | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400B05
#400B05
oklch(24.7% 0.083 31)
- #00262C
#00262C
oklch(24.6% 0.043 210.4)
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 #400B05, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.015
- Mahogany #4A0100 ΔE 0.024
- Dark Maroon #3C0008 ΔE 0.028
- Chocolate Brown #411900 ΔE 0.035
- Dark Brown #341C02 ΔE 0.048
- Dark Plum #3F012C ΔE 0.075
- Aubergine #3D0734 ΔE 0.085
- Burgundy #610023 ΔE 0.089
Use #400B05 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.