#43478F
Closest named color: Blueberry (#464196). oklch(43.3% 0.117 277.9), rgb(67, 71, 143).
Aa
White text reads best on this color (8.27:1).
About this color
#43478F is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.117 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.021 away. White text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #43478F |
| RGB | rgb(67, 71, 143) |
| HSL | hsl(237, 36%, 41%) |
| OKLCH | oklch(43.3% 0.117 277.9) |
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 #43478F | 8.27:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #43478F | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #43478F text on white | 8.27:1 | AAA | Lc 88.4 | Fine for body text |
| #43478F text on black | 2.53:1 | Fails | Lc -13.8 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D3D7F3
oklch(88.5% 0.039 279.1)
-
Step 300
300
#B6BDED
oklch(80.9% 0.068 278.3)
-
Step 400
400
#919AE4
oklch(70.8% 0.108 277.9)
-
Step 500
500
#777FDC
oklch(63.2% 0.139 277.9)
-
Step 600
600
#6166CA
oklch(55.6% 0.152 278.1)
-
Step 700
700
#5054AE
oklch(49% 0.141 277.9)
-
Step 800
800 (this color)
#43478F
oklch(43.3% 0.117 277.9)
-
Step 900
900
#373B71
oklch(37.7% 0.091 277.9)
-
Step 950
950
#202342
oklch(27% 0.057 277.6)
#43478F 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) | #255192 | 0.041 |
| Deuteranopia (no green cones) | #1D4B8D | 0.043 |
| Tritanopia (no blue cones) | #235764 | 0.102 |
| Achromatopsia (no color) | #4E4E4E | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43478F
#43478F
oklch(43.3% 0.117 277.9)
- #5E5000
#5E5000
oklch(43.2% 0.089 97.5)
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 #43478F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.021
- Dark Slate Blue #483D8B ΔE 0.026
- Twilight #4E518B ΔE 0.036
- Cobalt #1E488F ΔE 0.043
- Dusk Blue #26538D ΔE 0.045
- Dusk #4E5481 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.055
- Light Navy #155084 ΔE 0.056
Use #43478F 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.