#424786
Closest named color: Dark Slate Blue (#483D8B). oklch(42.6% 0.103 277.6), rgb(66, 71, 134).
Aa
White text reads best on this color (8.47:1).
About this color
#424786 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.103 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.030 away. White text reads best on it, at 8.47:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #424786 |
| RGB | rgb(66, 71, 134) |
| HSL | hsl(236, 34%, 39%) |
| OKLCH | oklch(42.6% 0.103 277.6) |
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 #424786 | 8.47:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #424786 | 2.47:1 | Fails | Lc 14.9 | Not readable |
| #424786 text on white | 8.47:1 | AAA | Lc 89.0 | Fine for body text |
| #424786 text on black | 2.47:1 | Fails | Lc -13.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D8F0
oklch(88.6% 0.033 276.3)
-
Step 300
300
#B7BEE8
oklch(81% 0.06 277.6)
-
Step 400
400
#929BDD
oklch(70.8% 0.097 277.6)
-
Step 500
500
#7881D3
oklch(63.1% 0.123 277.5)
-
Step 600
600
#6269C0
oklch(55.7% 0.134 277.7)
-
Step 700
700
#5157A6
oklch(49.1% 0.125 277.5)
-
Step 800
800 (this color)
#424786
oklch(42.6% 0.103 277.6)
-
Step 900
900
#383C6C
oklch(37.7% 0.082 278.1)
-
Step 950
950
#21243F
oklch(27.2% 0.05 277.7)
#424786 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) | #2D5088 | 0.034 |
| Deuteranopia (no green cones) | #274A85 | 0.034 |
| Tritanopia (no blue cones) | #285460 | 0.089 |
| Achromatopsia (no color) | #4D4D4D | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424786
#424786
oklch(42.6% 0.103 277.6)
- #5C4E00
#5C4E00
oklch(42.5% 0.088 97.2)
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 #424786, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.030
- Blueberry #464196 ΔE 0.033
- Twilight #4E518B ΔE 0.035
- Dusk Blue #26538D ΔE 0.043
- Cobalt #1E488F ΔE 0.043
- Dusk #4E5481 ΔE 0.046
- Light Navy #155084 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.056
Use #424786 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.