#424C92
Closest named color: Twilight (#4E518B). oklch(44.5% 0.114 274.7), rgb(66, 76, 146).
Aa
White text reads best on this color (7.83:1).
About this color
#424C92 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.114 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.027 away. White text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.68:1 |
| White text | 7.83:1 |
Values
| HEX | #424C92 |
| RGB | rgb(66, 76, 146) |
| HSL | hsl(233, 38%, 42%) |
| OKLCH | oklch(44.5% 0.114 274.7) |
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 #424C92 | 7.83:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #424C92 | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #424C92 text on white | 7.83:1 | AAA | Lc 87.0 | Fine for body text |
| #424C92 text on black | 2.68:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300
#B3BEEC
oklch(80.9% 0.066 274.3)
-
Step 400
400
#8D9BE3
oklch(70.7% 0.107 274.9)
-
Step 500
500
#7281DB
oklch(63.2% 0.136 274.7)
-
Step 600
600
#5B68C9
oklch(55.6% 0.149 274.7)
-
Step 700
700
#4B56AE
oklch(49.1% 0.139 274.7)
-
Step 800
800 (this color)
#424C92
oklch(44.5% 0.114 274.7)
-
Step 900
900
#343C70
oklch(37.6% 0.089 274.7)
-
Step 950
950
#1E2442
oklch(27.1% 0.056 273.5)
#424C92 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) | #2C5595 | 0.033 |
| Deuteranopia (no green cones) | #234F90 | 0.035 |
| Tritanopia (no blue cones) | #1C5B68 | 0.100 |
| Achromatopsia (no color) | #525252 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424C92
#424C92
oklch(44.5% 0.114 274.7)
- #645200
#645200
oklch(44.4% 0.091 94.3)
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 #424C92, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.027
- Blueberry #464196 ΔE 0.030
- Dusk Blue #26538D ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.042
- Dusk #4E5481 ΔE 0.044
- Cobalt #1E488F ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.050
Use #424C92 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.