#424871
Closest named color: Dusk (#4E5481). oklch(41.5% 0.069 276.6), rgb(66, 72, 113).
Aa
White text reads best on this color (8.76:1).
About this color
#424871 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.069 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.046 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #424871 |
| RGB | rgb(66, 72, 113) |
| HSL | hsl(232, 26%, 35%) |
| OKLCH | oklch(41.5% 0.069 276.6) |
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 #424871 | 8.76:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #424871 | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #424871 text on white | 8.76:1 | AAA | Lc 90.0 | Fine for body text |
| #424871 text on black | 2.39:1 | Fails | Lc -12.3 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#B9BFDB
oklch(80.9% 0.04 275.9)
-
Step 400
400
#969EC9
oklch(70.8% 0.064 276.4)
-
Step 500
500
#7C85BB
oklch(63.1% 0.082 276.5)
-
Step 600
600
#666EA7
oklch(55.6% 0.089 277)
-
Step 700
700
#545C90
oklch(49.1% 0.084 276.2)
-
Step 800
800 (this color)
#424871
oklch(41.5% 0.069 276.6)
-
Step 900
900
#3A3F5E
oklch(37.7% 0.053 276.5)
-
Step 950
950
#222537
oklch(27% 0.034 276.6)
#424871 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) | #3A4D73 | 0.017 |
| Deuteranopia (no green cones) | #374970 | 0.016 |
| Tritanopia (no blue cones) | #345057 | 0.061 |
| Achromatopsia (no color) | #4B4B4B | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424871
#424871
oklch(41.5% 0.069 276.6)
- #574C1A
#574C1A
oklch(41.7% 0.07 96.8)
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 #424871, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.046
- Twilight #4E518B ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.053
- YInMn Blue #415A77 ΔE 0.053
- Light Navy #155084 ΔE 0.054
- Dusty Grape #545775 ΔE 0.055
- Dusk Blue #26538D ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
Use #424871 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.