#40384A
Closest named color: Onyx (#343A40). oklch(35.6% 0.032 305), rgb(64, 56, 74).
Aa
White text reads best on this color (11.15:1).
About this color
#40384A is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.032 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.030 away. White text reads best on it, at 11.15:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.88:1 |
| White text | 11.15:1 |
Values
| HEX | #40384A |
| RGB | rgb(64, 56, 74) |
| HSL | hsl(267, 14%, 25%) |
| OKLCH | oklch(35.6% 0.032 305) |
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 #40384A | 11.15:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #40384A | 1.88:1 | Fails | Lc 8.1 | Not readable |
| #40384A text on white | 11.15:1 | AAA | Lc 95.8 | Preferred for body text |
| #40384A text on black | 1.88:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9EE
oklch(93.7% 0.007 304.2)
-
Step 200
200
#DBD7E0
oklch(88.5% 0.013 306)
-
Step 300
300
#C4BDCE
oklch(80.9% 0.025 304.4)
-
Step 400
400
#A69BB5
oklch(70.7% 0.039 304.6)
-
Step 500
500
#9082A2
oklch(63% 0.05 304.9)
-
Step 600
600
#7B6C8D
oklch(55.7% 0.053 305.4)
-
Step 700
700
#675A78
oklch(49.2% 0.05 304.4)
-
Step 800
800
#544962
oklch(42.6% 0.043 304.7)
-
Step 900
900 (this color)
#40384A
oklch(35.6% 0.032 305)
-
Step 950
950
#29242F
oklch(27.1% 0.021 305.6)
#40384A 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) | #353B4B | 0.020 |
| Deuteranopia (no green cones) | #363B49 | 0.019 |
| Tritanopia (no blue cones) | #3F3A3E | 0.024 |
| Achromatopsia (no color) | #3B3B3B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40384A
#40384A
oklch(35.6% 0.032 305)
- #383F2D
#383F2D
oklch(35.6% 0.031 125.2)
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 #40384A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.030
- Charcoal Grey #3C4142 ΔE 0.037
- Gunmetal #293241 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.052
- Charcoal #264653 ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.059
Use #40384A 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.