#424CAD
Closest named color: Blueberry (#464196). oklch(46.4% 0.153 274.3), rgb(66, 76, 173).
Aa
White text reads best on this color (7.31:1).
About this color
#424CAD is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.153 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.044 away. White text reads best on it, at 7.31:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.86:1 |
| White text | 7.31:1 |
Values
| HEX | #424CAD |
| RGB | rgb(66, 76, 173) |
| HSL | hsl(234, 45%, 47%) |
| OKLCH | oklch(46.4% 0.153 274.3) |
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 #424CAD | 7.31:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #424CAD | 2.86:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #424CAD text on white | 7.31:1 | AAA | Lc 85.1 | Fine for body text |
| #424CAD text on black | 2.86:1 | Fails | Lc -16.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F5
oklch(88.5% 0.041 273.3)
-
Step 300
300
#B2BEF1
oklch(81% 0.073 274.3)
-
Step 400
400
#8A9AEA
oklch(70.6% 0.119 274.4)
-
Step 500
500
#6F7FE4
oklch(63.1% 0.152 274.4)
-
Step 600
600
#5866D2
oklch(55.6% 0.165 274.2)
-
Step 700
700 (this color)
#424CAD
oklch(46.4% 0.153 274.3)
-
Step 800
800
#3C4593
oklch(42.6% 0.127 274.7)
-
Step 900
900
#323B75
oklch(37.6% 0.099 274)
-
Step 950
950
#1D2345
oklch(27% 0.063 273.9)
#424CAD 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) | #005BB0 | 0.054 |
| Deuteranopia (no green cones) | #0052AB | 0.050 |
| Tritanopia (no blue cones) | #006375 | 0.131 |
| Achromatopsia (no color) | #565656 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424CAD
#424CAD
oklch(46.4% 0.153 274.3)
- #6B5800
#6B5800
oklch(46.6% 0.096 94.4)
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 #424CAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.056
- Twilight #4E518B ΔE 0.061
- Blue Blue #2242C7 ΔE 0.061
- Majorelle Blue #3F37C9 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.064
- Dusk Blue #26538D ΔE 0.066
Use #424CAD 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.