#40102E
Closest named color: Aubergine (#3D0734). oklch(26.6% 0.083 345.8), rgb(64, 16, 46).
Aa
White text reads best on this color (15.77:1).
About this color
#40102E is a dark, moderately saturated red. In OKLCH its lightness is 27%, its chroma 0.083 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.025 away. White text reads best on it, at 15.77:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.33:1 |
| White text | 15.77:1 |
Values
| HEX | #40102E |
| RGB | rgb(64, 16, 46) |
| HSL | hsl(323, 60%, 16%) |
| OKLCH | oklch(26.6% 0.083 345.8) |
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 #40102E | 15.77:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #40102E | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #40102E text on white | 15.77:1 | AAA | Lc 102.2 | Preferred for body text |
| #40102E text on black | 1.33:1 | 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
#F9E3EE
oklch(93.7% 0.028 345.9)
-
Step 200
200
#F5CBE1
oklch(88.4% 0.055 345.4)
-
Step 300
300
#F0A7CE
oklch(81% 0.099 346.2)
-
Step 400
400
#E474B6
oklch(70.7% 0.158 345.5)
-
Step 500
500
#D948A3
oklch(63.1% 0.202 345.8)
-
Step 600
600
#C41D8E
oklch(55.6% 0.22 345.8)
-
Step 700
700
#A90879
oklch(49.1% 0.204 345.8)
-
Step 800
800
#891162
oklch(42.7% 0.169 345.9)
-
Step 900
900
#6F1A50
oklch(37.8% 0.131 346.3)
-
Step 950
950 (this color)
#40102E
oklch(26.6% 0.083 345.8)
#40102E 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) | #151E2F | 0.092 |
| Deuteranopia (no green cones) | #23262D | 0.082 |
| Tritanopia (no blue cones) | #450F1D | 0.034 |
| Achromatopsia (no color) | #232323 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40102E
#40102E
oklch(26.6% 0.083 345.8)
- #002E1F
#002E1F
oklch(26.7% 0.056 165.5)
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 #40102E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.025
- Dark Plum #3F012C ΔE 0.028
- Eggplant #380835 ΔE 0.033
- Eggplant Purple #430541 ΔE 0.043
- Dark Purple #35063E ΔE 0.051
- Deep Violet #490648 ΔE 0.055
- Deep Purple #36013F ΔE 0.056
- Dark Maroon #3C0008 ΔE 0.066
Use #40102E 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.