#403A4D
Closest named color: Onyx (#343A40). oklch(36.2% 0.033 299.2), rgb(64, 58, 77).
Aa
White text reads best on this color (10.87:1).
About this color
#403A4D is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.033 and its hue 299°. 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 10.87:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.93:1 |
| White text | 10.87:1 |
Values
| HEX | #403A4D |
| RGB | rgb(64, 58, 77) |
| HSL | hsl(259, 14%, 26%) |
| OKLCH | oklch(36.2% 0.033 299.2) |
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 #403A4D | 10.87:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #403A4D | 1.93:1 | Fails | Lc 8.7 | Not readable |
| #403A4D text on white | 10.87:1 | AAA | Lc 95.2 | Preferred for body text |
| #403A4D text on black | 1.93:1 | Fails | Lc -7.4 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9EE
oklch(93.6% 0.007 295.4)
-
Step 200
200
#DAD7E1
oklch(88.4% 0.014 299.8)
-
Step 300
300
#C2BDCF
oklch(80.8% 0.026 298.5)
-
Step 400
400
#A49CB6
oklch(70.8% 0.038 299.5)
-
Step 500
500
#8D83A4
oklch(63% 0.05 298.8)
-
Step 600
600
#786C90
oklch(55.6% 0.057 299.8)
-
Step 700
700
#655A7A
oklch(49% 0.052 300.2)
-
Step 800
800
#524A63
oklch(42.7% 0.042 299.3)
-
Step 900
900 (this color)
#403A4D
oklch(36.2% 0.033 299.2)
-
Step 950
950
#28242F
oklch(26.9% 0.021 301.6)
#403A4D 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) | #363D4E | 0.018 |
| Deuteranopia (no green cones) | #373D4C | 0.017 |
| Tritanopia (no blue cones) | #3E3D40 | 0.028 |
| Achromatopsia (no color) | #3D3D3D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403A4D
#403A4D
oklch(36.2% 0.033 299.2)
- #3C402D
#3C402D
oklch(36.2% 0.032 117.7)
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 #403A4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.048
- Charcoal #264653 ΔE 0.048
- Gunmetal #293241 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.060
Use #403A4D 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.