#403240
Closest named color: Onyx (#343A40). oklch(33.8% 0.031 326.2), rgb(64, 50, 64).
Aa
White text reads best on this color (12.01:1).
About this color
#403240 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.031 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.032 away. White text reads best on it, at 12.01:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.74:1 |
| White text | 12.01:1 |
Values
| HEX | #403240 |
| RGB | rgb(64, 50, 64) |
| HSL | hsl(300, 12%, 22%) |
| OKLCH | oklch(33.8% 0.031 326.2) |
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 #403240 | 12.01:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #403240 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #403240 text on white | 12.01:1 | AAA | Lc 97.5 | Preferred for body text |
| #403240 text on black | 1.74:1 | 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 900.
-
Step 50
50
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#ECE8EC
oklch(93.5% 0.007 325.6)
-
Step 200
200
#DED6DE
oklch(88.5% 0.014 325.7)
-
Step 300
300
#C9BCC9
oklch(81% 0.023 325.8)
-
Step 400
400
#AD99AD
oklch(70.7% 0.037 326)
-
Step 500
500
#998099
oklch(63.1% 0.047 326.1)
-
Step 600
600
#846984
oklch(55.7% 0.052 326.3)
-
Step 700
700
#6F576F
oklch(49% 0.048 326.3)
-
Step 800
800
#5B485B
oklch(42.8% 0.039 326.2)
-
Step 900
900 (this color)
#403240
oklch(33.8% 0.031 326.2)
-
Step 950
950
#2C232C
oklch(27% 0.021 326.1)
#403240 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) | #313541 | 0.027 |
| Deuteranopia (no green cones) | #34373F | 0.026 |
| Tritanopia (no blue cones) | #413337 | 0.017 |
| Achromatopsia (no color) | #363636 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403240
#403240
oklch(33.8% 0.031 326.2)
- #2D3C2E
#2D3C2E
oklch(33.8% 0.031 146.6)
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 #403240, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.032
- Gunmetal #293241 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.064
- Charcoal #264653 ΔE 0.069
- Dark Grey Blue #29465B ΔE 0.071
Use #403240 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.