#545A84
Closest named color: Dusk (#4E5481). oklch(48% 0.068 277.3), rgb(84, 90, 132).
Aa
White text reads best on this color (6.61:1).
About this color
#545A84 is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.068 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.020 away. White text reads best on it, at 6.61:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.17:1 |
| White text | 6.61:1 |
Values
| HEX | #545A84 |
| RGB | rgb(84, 90, 132) |
| HSL | hsl(233, 22%, 42%) |
| OKLCH | oklch(48% 0.068 277.3) |
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 #545A84 | 6.61:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #545A84 | 3.17:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #545A84 text on white | 6.61:1 | AA | Lc 82.7 | Fine for body text |
| #545A84 text on black | 3.17:1 | AA large text | Lc -19.2 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D8E5
oklch(88.5% 0.018 279)
-
Step 300
300
#BBBFD6
oklch(80.9% 0.033 277.8)
-
Step 400
400
#989EC2
oklch(70.7% 0.053 277.5)
-
Step 500
500
#7F86B2
oklch(63.1% 0.067 277.3)
-
Step 600
600
#686F9E
oklch(55.5% 0.074 277.2)
-
Step 700
700 (this color)
#545A84
oklch(48% 0.068 277.3)
-
Step 800
800
#474C6E
oklch(42.7% 0.057 277.3)
-
Step 900
900
#3C4059
oklch(37.9% 0.043 277.1)
-
Step 950
950
#232534
oklch(26.9% 0.028 278.4)
#545A84 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) | #4D5F86 | 0.016 |
| Deuteranopia (no green cones) | #4A5B83 | 0.014 |
| Tritanopia (no blue cones) | #476269 | 0.060 |
| Achromatopsia (no color) | #5D5D5D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545A84
#545A84
oklch(48% 0.068 277.3)
- #685E2E
#685E2E
oklch(48% 0.068 97.8)
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 #545A84, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.020
- Dusty Grape #545775 ΔE 0.024
- Dusky Blue #475F94 ΔE 0.030
- Twilight #4E518B ΔE 0.033
- YInMn Blue #415A77 ΔE 0.035
- Denim #3B638C ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.047
Use #545A84 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.