#424594
Closest named color: Blueberry (#464196). oklch(43.2% 0.127 278), rgb(66, 69, 148).
Aa
White text reads best on this color (8.36:1).
About this color
#424594 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.127 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.012 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #424594 |
| RGB | rgb(66, 69, 148) |
| HSL | hsl(238, 38%, 42%) |
| OKLCH | oklch(43.2% 0.127 278) |
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 #424594 | 8.36:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #424594 | 2.51:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #424594 text on white | 8.36:1 | AAA | Lc 88.6 | Fine for body text |
| #424594 text on black | 2.51:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B5BDF1
oklch(81% 0.074 277.8)
-
Step 400
400
#8F99EA
oklch(70.8% 0.119 277.5)
-
Step 500
500
#767DE3
oklch(63.1% 0.152 278.2)
-
Step 600
600
#6064D1
oklch(55.7% 0.165 278)
-
Step 700
700
#4F52B5
oklch(49.1% 0.154 277.8)
-
Step 800
800 (this color)
#424594
oklch(43.2% 0.127 278)
-
Step 900
900
#363A75
oklch(37.7% 0.099 277.6)
-
Step 950
950
#202244
oklch(26.9% 0.063 278.8)
#424594 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) | #1A5197 | 0.048 |
| Deuteranopia (no green cones) | #0C4A92 | 0.052 |
| Tritanopia (no blue cones) | #1B5765 | 0.112 |
| Achromatopsia (no color) | #4E4E4E | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424594
#424594
oklch(43.2% 0.127 278)
- #5D5000
#5D5000
oklch(43.1% 0.089 98.4)
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 #424594, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.012
- Dark Slate Blue #483D8B ΔE 0.025
- Cobalt #1E488F ΔE 0.043
- Twilight #4E518B ΔE 0.044
- Dusk Blue #26538D ΔE 0.050
- Dusk #4E5481 ΔE 0.061
- Light Navy #155084 ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.061
Use #424594 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.