#40051D
Closest named color: Dark Plum (#3F012C). oklch(24.6% 0.09 2.4), rgb(64, 5, 29).
Aa
White text reads best on this color (16.70:1).
About this color
#40051D is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.090 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.032 away. White text reads best on it, at 16.70:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.25:1 |
| White text | 16.70:1 |
Values
| HEX | #40051D |
| RGB | rgb(64, 5, 29) |
| HSL | hsl(336, 86%, 14%) |
| OKLCH | oklch(24.6% 0.09 2.4) |
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 #40051D | 16.70:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #40051D | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #40051D text on white | 16.70:1 | AAA | Lc 102.8 | Preferred for body text |
| #40051D text on black | 1.25:1 | 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
#FDE2E8
oklch(93.6% 0.031 2.6)
-
Step 200
200
#FCCAD6
oklch(88.6% 0.059 2.3)
-
Step 300
300
#FBA3BB
oklch(80.9% 0.108 2)
-
Step 400
400
#F36C97
oklch(70.6% 0.17 2.5)
-
Step 500
500
#EA387E
oklch(63.1% 0.217 2.4)
-
Step 600
600
#D10068
oklch(55.6% 0.224 2.4)
-
Step 700
700
#B10057
oklch(49.1% 0.198 2.4)
-
Step 800
800
#920047
oklch(42.6% 0.172 2.2)
-
Step 900
900
#780C3B
oklch(37.6% 0.142 2.3)
-
Step 950
950 (this color)
#40051D
oklch(24.6% 0.09 2.4)
#40051D 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) | #14161E | 0.101 |
| Deuteranopia (no green cones) | #24221C | 0.091 |
| Tritanopia (no blue cones) | #460010 | 0.025 |
| Achromatopsia (no color) | #1E1E1E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40051D
#40051D
oklch(24.6% 0.09 2.4)
- #002722
#002722
oklch(24.5% 0.044 182.3)
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 #40051D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.032
- Dark Maroon #3C0008 ΔE 0.035
- Aubergine #3D0734 ΔE 0.045
- Deep Brown #410200 ΔE 0.046
- Mahogany #4A0100 ΔE 0.049
- Eggplant #380835 ΔE 0.051
- Eggplant Purple #430541 ΔE 0.068
- Chocolate Brown #411900 ΔE 0.071
Use #40051D 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.