#400D10
Closest named color: Deep Brown (#410200). oklch(25.1% 0.079 21.7), rgb(64, 13, 16).
Aa
White text reads best on this color (16.36:1).
About this color
#400D10 is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.079 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.025 away. White text reads best on it, at 16.36:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.28:1 |
| White text | 16.36:1 |
Values
| HEX | #400D10 |
| RGB | rgb(64, 13, 16) |
| HSL | hsl(356, 66%, 15%) |
| OKLCH | oklch(25.1% 0.079 21.7) |
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 #400D10 | 16.36:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #400D10 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #400D10 text on white | 16.36:1 | AAA | Lc 102.7 | Preferred for body text |
| #400D10 text on black | 1.28:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FACCCA
oklch(88.4% 0.052 21.1)
-
Step 300
300
#F7A9A6
oklch(80.9% 0.093 21.8)
-
Step 400
400
#EF7776
oklch(70.8% 0.148 22)
-
Step 500
500
#E64B53
oklch(63.1% 0.191 21.7)
-
Step 600
600
#D12138
oklch(55.6% 0.207 21.6)
-
Step 700
700
#B40C2A
oklch(49% 0.192 21.7)
-
Step 800
800
#921324
oklch(42.6% 0.159 21.6)
-
Step 900
900
#761B22
oklch(37.7% 0.125 21.6)
-
Step 950
950 (this color)
#400D10
oklch(25.1% 0.079 21.7)
#400D10 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) | #1B1910 | 0.085 |
| Deuteranopia (no green cones) | #28240F | 0.079 |
| Tritanopia (no blue cones) | #47020F | 0.021 |
| Achromatopsia (no color) | #202020 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400D10
#400D10
oklch(25.1% 0.079 21.7)
- #00282B
#00282B
oklch(25.2% 0.043 202.4)
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 #400D10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.025
- Dark Maroon #3C0008 ΔE 0.029
- Mahogany #4A0100 ΔE 0.030
- Chocolate Brown #411900 ΔE 0.041
- Dark Brown #341C02 ΔE 0.054
- Dark Plum #3F012C ΔE 0.062
- Aubergine #3D0734 ΔE 0.071
- Eggplant #380835 ΔE 0.076
Use #400D10 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.