#40182B
Closest named color: Aubergine (#3D0734). oklch(27.6% 0.067 352.7), rgb(64, 24, 43).
Aa
White text reads best on this color (15.17:1).
About this color
#40182B is a dark, muted red. In OKLCH its lightness is 28%, its chroma 0.067 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.046 away. White text reads best on it, at 15.17:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.38:1 |
| White text | 15.17:1 |
Values
| HEX | #40182B |
| RGB | rgb(64, 24, 43) |
| HSL | hsl(332, 45%, 17%) |
| OKLCH | oklch(27.6% 0.067 352.7) |
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 #40182B | 15.17:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #40182B | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #40182B text on white | 15.17:1 | AAA | Lc 101.8 | Preferred for body text |
| #40182B text on black | 1.38:1 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F7E4EB
oklch(93.6% 0.023 353.2)
-
Step 200
200
#F2CEDC
oklch(88.6% 0.044 352.6)
-
Step 300
300
#EAACC5
oklch(80.9% 0.079 353)
-
Step 400
400
#DD7DA8
oklch(70.7% 0.128 352.6)
-
Step 500
500
#D05992
oklch(63.1% 0.162 352.8)
-
Step 600
600
#BB3A7D
oklch(55.5% 0.177 352.4)
-
Step 700
700
#A12B69
oklch(49.1% 0.164 352.7)
-
Step 800
800
#832656
oklch(42.8% 0.136 352.6)
-
Step 900
900
#6A2547
oklch(37.8% 0.106 352.7)
-
Step 950
950 (this color)
#40182B
oklch(27.6% 0.067 352.7)
#40182B 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) | #1D212C | 0.074 |
| Deuteranopia (no green cones) | #28282A | 0.066 |
| Tritanopia (no blue cones) | #45161F | 0.024 |
| Achromatopsia (no color) | #262626 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40182B
#40182B
oklch(27.6% 0.067 352.7)
- #003025
#003025
oklch(27.6% 0.053 172.6)
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 #40182B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.046
- Dark Plum #3F012C ΔE 0.048
- Eggplant #380835 ΔE 0.051
- Eggplant Purple #430541 ΔE 0.060
- Chocolate Brown #411900 ΔE 0.067
- Mahogany #4A0100 ΔE 0.068
- Dark Purple #35063E ΔE 0.068
- Dark Maroon #3C0008 ΔE 0.068
Use #40182B 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.