#42496F
Closest named color: Dusk (#4E5481). oklch(41.6% 0.064 275.3), rgb(66, 73, 111).
Aa
White text reads best on this color (8.69:1).
About this color
#42496F is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.064 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.045 away. White text reads best on it, at 8.69:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #42496F |
| RGB | rgb(66, 73, 111) |
| HSL | hsl(231, 25%, 35%) |
| OKLCH | oklch(41.6% 0.064 275.3) |
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 #42496F | 8.69:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #42496F | 2.41:1 | Fails | Lc 14.2 | Not readable |
| #42496F text on white | 8.69:1 | AAA | Lc 89.8 | Fine for body text |
| #42496F text on black | 2.41:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#B9BFD9
oklch(80.8% 0.037 275.2)
-
Step 400
400
#959EC7
oklch(70.7% 0.061 275.1)
-
Step 500
500
#7C86B8
oklch(63.1% 0.076 275.3)
-
Step 600
600
#656FA4
oklch(55.6% 0.083 275.2)
-
Step 700
700
#545D8D
oklch(49.2% 0.078 275.1)
-
Step 800
800 (this color)
#42496F
oklch(41.6% 0.064 275.3)
-
Step 900
900
#3A3F5C
oklch(37.6% 0.05 276.2)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#42496F 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) | #3C4D71 | 0.013 |
| Deuteranopia (no green cones) | #394A6E | 0.013 |
| Tritanopia (no blue cones) | #345057 | 0.056 |
| Achromatopsia (no color) | #4B4B4B | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42496F
#42496F
oklch(41.6% 0.064 275.3)
- #574C1F
#574C1F
oklch(41.7% 0.065 95.7)
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 #42496F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.051
- Dusty Grape #545775 ΔE 0.052
- Twilight #4E518B ΔE 0.053
- Light Navy #155084 ΔE 0.055
- Dusk Blue #26538D ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.059
Use #42496F 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.