#545F78
Closest named color: Dusty Grape (#545775). oklch(48.6% 0.043 266.3), rgb(84, 95, 120).
Aa
White text reads best on this color (6.39:1).
About this color
#545F78 is a medium-dark, muted blue. In OKLCH its lightness is 49%, its chroma 0.043 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.023 away. White text reads best on it, at 6.39:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #545F78 |
| RGB | rgb(84, 95, 120) |
| HSL | hsl(222, 18%, 40%) |
| OKLCH | oklch(48.6% 0.043 266.3) |
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 #545F78 | 6.39:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #545F78 | 3.28:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #545F78 text on white | 6.39:1 | AA | Lc 81.8 | Fine for body text |
| #545F78 text on black | 3.28:1 | AA large text | Lc -20.1 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E1
oklch(88.5% 0.012 264.5)
-
Step 300
300
#BAC1CE
oklch(80.9% 0.02 263)
-
Step 400
400
#97A1B6
oklch(70.8% 0.033 265.2)
-
Step 500
500
#7E89A4
oklch(63.1% 0.043 267.7)
-
Step 600
600
#67738F
oklch(55.6% 0.046 266.7)
-
Step 700
700 (this color)
#545F78
oklch(48.6% 0.043 266.3)
-
Step 800
800
#464F63
oklch(42.8% 0.035 265.9)
-
Step 900
900
#3B4151
oklch(37.6% 0.029 268.9)
-
Step 950
950
#22262F
oklch(26.9% 0.018 266.3)
#545F78 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) | #576179 | 0.008 |
| Deuteranopia (no green cones) | #545E77 | 0.003 |
| Tritanopia (no blue cones) | #4A6467 | 0.039 |
| Achromatopsia (no color) | #5F5F5F | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545F78
#545F78
oklch(48.6% 0.043 266.3)
- #6A5E43
#6A5E43
oklch(48.6% 0.043 86.7)
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 #545F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.023
- Slate #516572 ΔE 0.024
- YInMn Blue #415A77 ΔE 0.032
- Denim #3B638C ΔE 0.041
- Dusk #4E5481 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.048
- Dim Gray #696969 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.056
Use #545F78 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.