#42011F
Closest named color: Dark Plum (#3F012C). oklch(24.7% 0.098 359.9), rgb(66, 1, 31).
Aa
White text reads best on this color (16.72:1).
About this color
#42011F is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.098 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.027 away. White text reads best on it, at 16.72:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.098) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.25:1 |
| White text | 16.72:1 |
Values
| HEX | #42011F |
| RGB | rgb(66, 1, 31) |
| HSL | hsl(332, 97%, 13%) |
| OKLCH | oklch(24.7% 0.098 359.9) |
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 #42011F | 16.72:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #42011F | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #42011F text on white | 16.72:1 | AAA | Lc 102.6 | Preferred for body text |
| #42011F 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
#FFF1F5
oklch(97% 0.016 358)
-
Step 100
100
#FEE1E9
oklch(93.6% 0.033 359.2)
-
Step 200
200
#FEC8D7
oklch(88.4% 0.064 0.1)
-
Step 300
300
#FEA0BE
oklch(80.8% 0.117 359.4)
-
Step 400
400
#F8669C
oklch(70.7% 0.185 359.9)
-
Step 500
500
#F02684
oklch(63.1% 0.238 359.8)
-
Step 600
600
#D0006E
oklch(55.6% 0.225 359.9)
-
Step 700
700
#B0005C
oklch(49% 0.199 360)
-
Step 800
800
#92004B
oklch(42.7% 0.173 0.1)
-
Step 900
900
#7B003E
oklch(37.7% 0.153 0.2)
-
Step 950
950 (this color)
#42011F
oklch(24.7% 0.098 359.9)
#42011F 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) | #111620 | 0.113 |
| Deuteranopia (no green cones) | #23221E | 0.099 |
| Tritanopia (no blue cones) | #49000F | 0.034 |
| Achromatopsia (no color) | #1E1E1E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42011F
#42011F
oklch(24.7% 0.098 359.9)
- #002822
#002822
oklch(24.8% 0.045 180.2)
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 #42011F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.027
- Dark Maroon #3C0008 ΔE 0.041
- Aubergine #3D0734 ΔE 0.041
- Eggplant #380835 ΔE 0.049
- Deep Brown #410200 ΔE 0.052
- Mahogany #4A0100 ΔE 0.054
- Eggplant Purple #430541 ΔE 0.063
- Dark Purple #35063E ΔE 0.069
Use #42011F 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.