#40415C
Closest named color: Dark Grey Blue (#29465B). oklch(38.6% 0.046 282.4), rgb(64, 65, 92).
Aa
White text reads best on this color (9.86:1).
About this color
#40415C is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.046 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 9.86:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.12:1 |
| White text | 9.86:1 |
Values
| HEX | #40415C |
| RGB | rgb(64, 65, 92) |
| HSL | hsl(238, 18%, 31%) |
| OKLCH | oklch(38.6% 0.046 282.4) |
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 #40415C | 9.86:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #40415C | 2.12:1 | Fails | Lc 11.1 | Not readable |
| #40415C text on white | 9.86:1 | AAA | Lc 92.9 | Preferred for body text |
| #40415C text on black | 2.12:1 | Fails | Lc -9.6 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D7D8E6
oklch(88.6% 0.019 282.7)
-
Step 300
300
#BDBED7
oklch(80.9% 0.035 283.8)
-
Step 400
400
#9B9DC3
oklch(70.8% 0.055 282.5)
-
Step 500
500
#8384B3
oklch(63% 0.07 283.2)
-
Step 600
600
#6C6E9F
oklch(55.6% 0.076 281.8)
-
Step 700
700
#5A5C88
oklch(49.2% 0.07 281.5)
-
Step 800
800
#4A4B6E
oklch(42.7% 0.058 282.4)
-
Step 900
900 (this color)
#40415C
oklch(38.6% 0.046 282.4)
-
Step 950
950
#242534
oklch(27% 0.028 281.4)
#40415C 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) | #39445D | 0.013 |
| Deuteranopia (no green cones) | #38425B | 0.013 |
| Tritanopia (no blue cones) | #39464A | 0.041 |
| Achromatopsia (no color) | #434343 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40415C
#40415C
oklch(38.6% 0.046 282.4)
- #494528
#494528
oklch(38.7% 0.045 101.4)
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 #40415C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Charcoal #264653 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.047
- Onyx #343A40 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.059
- Dark Slate Gray #2F4F4F ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.067
- Twilight Blue #0A437A ΔE 0.073
Use #40415C 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.