#43547B
Closest named color: Dusk (#4E5481). oklch(44.9% 0.068 265.7), rgb(67, 84, 123).
Aa
White text reads best on this color (7.51:1).
About this color
#43547B is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.068 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.019 away. White text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #43547B |
| RGB | rgb(67, 84, 123) |
| HSL | hsl(222, 29%, 37%) |
| OKLCH | oklch(44.9% 0.068 265.7) |
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 #43547B | 7.51:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #43547B | 2.79:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #43547B text on white | 7.51:1 | AAA | Lc 86.1 | Fine for body text |
| #43547B text on black | 2.79:1 | Fails | Lc -16.0 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D2D9E8
oklch(88.4% 0.022 265.8)
-
Step 300
300
#B4C1DB
oklch(80.9% 0.039 264.3)
-
Step 400
400
#8EA0C9
oklch(70.6% 0.064 266.3)
-
Step 500
500
#7289BB
oklch(63.2% 0.08 265.1)
-
Step 600
600
#5B72A7
oklch(55.7% 0.087 265.7)
-
Step 700
700
#4A5F8F
oklch(49% 0.082 265.5)
-
Step 800
800 (this color)
#43547B
oklch(44.9% 0.068 265.7)
-
Step 900
900
#34415E
oklch(37.7% 0.053 265.4)
-
Step 950
950
#1F2637
oklch(27% 0.033 266.9)
#43547B 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) | #46577D | 0.010 |
| Deuteranopia (no green cones) | #40527A | 0.008 |
| Tritanopia (no blue cones) | #2F5C62 | 0.060 |
| Achromatopsia (no color) | #545454 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43547B
#43547B
oklch(44.9% 0.068 265.7)
- #665225
#665225
oklch(44.9% 0.068 85.4)
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 #43547B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.019
- YInMn Blue #415A77 ΔE 0.021
- Dusty Grape #545775 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.031
- Twilight #4E518B ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.039
- Dusk Blue #26538D ΔE 0.043
- Denim #3B638C ΔE 0.046
Use #43547B 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.