#424498
Closest named color: Blueberry (#464196). oklch(43.3% 0.134 278.2), rgb(66, 68, 152).
Aa
White text reads best on this color (8.36:1).
About this color
#424498 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.134 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.009 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #424498 |
| RGB | rgb(66, 68, 152) |
| HSL | hsl(239, 39%, 43%) |
| OKLCH | oklch(43.3% 0.134 278.2) |
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 #424498 | 8.36:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #424498 | 2.51:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #424498 text on white | 8.36:1 | AAA | Lc 88.6 | Fine for body text |
| #424498 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B4BCF3
oklch(80.8% 0.078 278.1)
-
Step 400
400
#8F98EE
oklch(70.8% 0.126 278.1)
-
Step 500
500
#757CE8
oklch(63.2% 0.16 278)
-
Step 600
600
#5F62D6
oklch(55.6% 0.174 278)
-
Step 700
700
#4F50BA
oklch(49.1% 0.163 278.1)
-
Step 800
800 (this color)
#424498
oklch(43.3% 0.134 278.2)
-
Step 900
900
#363978
oklch(37.7% 0.105 278)
-
Step 950
950
#202246
oklch(27.1% 0.066 278.6)
#424498 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) | #0F519B | 0.054 |
| Deuteranopia (no green cones) | #004A96 | 0.056 |
| Tritanopia (no blue cones) | #165767 | 0.117 |
| Achromatopsia (no color) | #4E4E4E | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424498
#424498
oklch(43.3% 0.134 278.2)
- #5E5000
#5E5000
oklch(43.2% 0.089 97.5)
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 #424498, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.009
- Dark Slate Blue #483D8B ΔE 0.027
- Cobalt #1E488F ΔE 0.045
- Twilight #4E518B ΔE 0.049
- Dusk Blue #26538D ΔE 0.054
- Sapphire #2138AB ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.065
- Light Navy #155084 ΔE 0.066
Use #424498 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.