#424298
Closest named color: Blueberry (#464196). oklch(42.9% 0.137 278.9), rgb(66, 66, 152).
Aa
White text reads best on this color (8.52:1).
About this color
#424298 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.137 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.007 away. White text reads best on it, at 8.52:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.46:1 |
| White text | 8.52:1 |
Values
| HEX | #424298 |
| RGB | rgb(66, 66, 152) |
| HSL | hsl(240, 39%, 43%) |
| OKLCH | oklch(42.9% 0.137 278.9) |
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 #424298 | 8.52:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #424298 | 2.46:1 | Fails | Lc 15.0 | Not readable |
| #424298 text on white | 8.52:1 | AAA | Lc 89.0 | Fine for body text |
| #424298 text on black | 2.46:1 | Fails | Lc -13.2 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BCF4
oklch(80.9% 0.079 278.9)
-
Step 400
400
#9097EF
oklch(70.7% 0.128 279.1)
-
Step 500
500
#767BEA
oklch(63.2% 0.164 278.7)
-
Step 600
600
#6161D8
oklch(55.7% 0.178 278.9)
-
Step 700
700
#504FBB
oklch(49% 0.166 278.8)
-
Step 800
800 (this color)
#424298
oklch(42.9% 0.137 278.9)
-
Step 900
900
#373879
oklch(37.7% 0.108 279.2)
-
Step 950
950
#202247
oklch(27.1% 0.068 278.5)
#424298 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) | #04509B | 0.059 |
| Deuteranopia (no green cones) | #004996 | 0.057 |
| Tritanopia (no blue cones) | #165666 | 0.120 |
| Achromatopsia (no color) | #4C4C4C | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424298
#424298
oklch(42.9% 0.137 278.9)
- #5C4F00
#5C4F00
oklch(42.8% 0.088 98.3)
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 #424298, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.007
- Dark Slate Blue #483D8B ΔE 0.025
- Cobalt #1E488F ΔE 0.046
- Twilight #4E518B ΔE 0.054
- Dusk Blue #26538D ΔE 0.058
- Sapphire #2138AB ΔE 0.060
- Rebecca Purple #663399 ΔE 0.068
- Light Navy #155084 ΔE 0.069
Use #424298 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.