#40102C
Closest named color: Aubergine (#3D0734). oklch(26.5% 0.082 348.2), rgb(64, 16, 44).
Aa
White text reads best on this color (15.80:1).
About this color
#40102C is a dark, moderately saturated red. In OKLCH its lightness is 27%, its chroma 0.082 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.028 away. White text reads best on it, at 15.80:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.32:1 |
| White text | 15.80:1 |
Values
| HEX | #40102C |
| RGB | rgb(64, 16, 44) |
| HSL | hsl(325, 60%, 16%) |
| OKLCH | oklch(26.5% 0.082 348.2) |
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 #40102C | 15.80:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #40102C | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #40102C text on white | 15.80:1 | AAA | Lc 102.3 | Preferred for body text |
| #40102C text on black | 1.32:1 | 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
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#F9E3ED
oklch(93.6% 0.027 348.3)
-
Step 200
200
#F6CBDF
oklch(88.5% 0.055 348.6)
-
Step 300
300
#F0A7CB
oklch(80.9% 0.097 348.4)
-
Step 400
400
#E574B1
oklch(70.7% 0.156 348.2)
-
Step 500
500
#DA499E
oklch(63.1% 0.199 348.2)
-
Step 600
600
#C51F89
oklch(55.6% 0.216 348)
-
Step 700
700
#AA0B74
oklch(49.2% 0.201 348.2)
-
Step 800
800
#8A125E
oklch(42.7% 0.166 348.4)
-
Step 900
900
#6F1A4D
oklch(37.7% 0.13 348.3)
-
Step 950
950 (this color)
#40102C
oklch(26.5% 0.082 348.2)
#40102C 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) | #161D2D | 0.090 |
| Deuteranopia (no green cones) | #24262B | 0.081 |
| Tritanopia (no blue cones) | #450E1C | 0.031 |
| Achromatopsia (no color) | #232323 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40102C
#40102C
oklch(26.5% 0.082 348.2)
- #002D20
#002D20
oklch(26.4% 0.053 168.2)
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 #40102C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.028
- Dark Plum #3F012C ΔE 0.029
- Eggplant #380835 ΔE 0.035
- Eggplant Purple #430541 ΔE 0.046
- Dark Purple #35063E ΔE 0.054
- Deep Violet #490648 ΔE 0.058
- Deep Purple #36013F ΔE 0.059
- Dark Maroon #3C0008 ΔE 0.063
Use #40102C 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.