#424A97
Closest named color: Blueberry (#464196). oklch(44.4% 0.125 275.6), rgb(66, 74, 151).
Aa
White text reads best on this color (7.90:1).
About this color
#424A97 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.125 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.023 away. White text reads best on it, at 7.90:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #424A97 |
| RGB | rgb(66, 74, 151) |
| HSL | hsl(234, 39%, 43%) |
| OKLCH | oklch(44.4% 0.125 275.6) |
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 #424A97 | 7.90:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #424A97 | 2.65:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #424A97 text on white | 7.90:1 | AAA | Lc 87.2 | Fine for body text |
| #424A97 text on black | 2.65:1 | Fails | Lc -14.9 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D1D8F5
oklch(88.6% 0.041 274.8)
-
Step 300
300
#B3BDF0
oklch(80.8% 0.073 276)
-
Step 400
400
#8C9AE9
oklch(70.7% 0.117 275.4)
-
Step 500
500
#727FE2
oklch(63.2% 0.148 275.7)
-
Step 600
600
#5B66D0
oklch(55.6% 0.162 275.4)
-
Step 700
700
#4B54B4
oklch(49.1% 0.15 275.4)
-
Step 800
800 (this color)
#424A97
oklch(44.4% 0.125 275.6)
-
Step 900
900
#343B74
oklch(37.7% 0.097 275.5)
-
Step 950
950
#1E2344
oklch(27% 0.061 275)
#424A97 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) | #23559A | 0.041 |
| Deuteranopia (no green cones) | #174E95 | 0.044 |
| Tritanopia (no blue cones) | #165B69 | 0.110 |
| Achromatopsia (no color) | #515151 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424A97
#424A97
oklch(44.4% 0.125 275.6)
- #635200
#635200
oklch(44.3% 0.091 95.1)
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 #424A97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.023
- Twilight #4E518B ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.037
- Dusk Blue #26538D ΔE 0.043
- Cobalt #1E488F ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.049
- Dusk #4E5481 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.058
Use #424A97 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.