#434877
Closest named color: Dusk (#4E5481). oklch(41.9% 0.078 277.8), rgb(67, 72, 119).
Aa
White text reads best on this color (8.63:1).
About this color
#434877 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.078 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.041 away. White text reads best on it, at 8.63:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #434877 |
| RGB | rgb(67, 72, 119) |
| HSL | hsl(234, 28%, 36%) |
| OKLCH | oklch(41.9% 0.078 277.8) |
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 #434877 | 8.63:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #434877 | 2.43:1 | Fails | Lc 14.4 | Not readable |
| #434877 text on white | 8.63:1 | AAA | Lc 89.6 | Fine for body text |
| #434877 text on black | 2.43:1 | Fails | Lc -12.7 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D5D8EA
oklch(88.5% 0.025 278.3)
-
Step 300
300
#B9BEDF
oklch(80.8% 0.047 278.5)
-
Step 400
400
#959DCE
oklch(70.7% 0.072 277.2)
-
Step 500
500
#7C84C2
oklch(63.2% 0.094 277.7)
-
Step 600
600
#656DAE
oklch(55.7% 0.101 277.2)
-
Step 700
700
#545A96
oklch(49% 0.096 277.9)
-
Step 800
800 (this color)
#434877
oklch(41.9% 0.078 277.8)
-
Step 900
900
#3A3E62
oklch(37.7% 0.062 278.2)
-
Step 950
950
#222539
oklch(27.1% 0.037 277)
#434877 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) | #384E79 | 0.021 |
| Deuteranopia (no green cones) | #344A76 | 0.021 |
| Tritanopia (no blue cones) | #33515A | 0.067 |
| Achromatopsia (no color) | #4C4C4C | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434877
#434877
oklch(41.9% 0.078 277.8)
- #584D10
#584D10
oklch(41.9% 0.078 98.5)
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 #434877, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.041
- Twilight #4E518B ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.049
- Dusk Blue #26538D ΔE 0.051
- Light Navy #155084 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.054
- Dusty Grape #545775 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.056
Use #434877 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.