#545C91
Closest named color: Dusky Blue (#475F94). oklch(49.2% 0.085 276.3), rgb(84, 92, 145).
Aa
White text reads best on this color (6.33:1).
About this color
#545C91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.085 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.018 away. White text reads best on it, at 6.33:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #545C91 |
| RGB | rgb(84, 92, 145) |
| HSL | hsl(232, 27%, 45%) |
| OKLCH | oklch(49.2% 0.085 276.3) |
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 #545C91 | 6.33:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #545C91 | 3.31:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #545C91 text on white | 6.33:1 | AA | Lc 81.4 | Fine for body text |
| #545C91 text on black | 3.31:1 | AA large text | Lc -20.4 | 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 700.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#B9BFDC
oklch(80.9% 0.041 276.2)
-
Step 400
400
#959ECA
oklch(70.8% 0.065 275.6)
-
Step 500
500
#7C85BD
oklch(63.1% 0.085 276.7)
-
Step 600
600
#656EA9
oklch(55.6% 0.092 276.4)
-
Step 700
700 (this color)
#545C91
oklch(49.2% 0.085 276.3)
-
Step 800
800
#454B75
oklch(42.7% 0.07 276.8)
-
Step 900
900
#3A3F5F
oklch(37.8% 0.055 276.6)
-
Step 950
950
#222538
oklch(27.1% 0.036 276.8)
#545C91 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) | #4A6293 | 0.020 |
| Deuteranopia (no green cones) | #455D90 | 0.020 |
| Tritanopia (no blue cones) | #41676F | 0.077 |
| Achromatopsia (no color) | #606060 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545C91
#545C91
oklch(49.2% 0.085 276.3)
- #6F601F
#6F601F
oklch(49% 0.085 96)
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 #545C91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.033
- Dusk #4E5481 ΔE 0.033
- Twilight #4E518B ΔE 0.033
- Denim #3B638C ΔE 0.038
- Dusty Grape #545775 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.051
Use #545C91 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.