#545A88
Closest named color: Dusk (#4E5481). oklch(48.2% 0.074 277.5), rgb(84, 90, 136).
Aa
White text reads best on this color (6.57:1).
About this color
#545A88 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.074 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.022 away. White text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #545A88 |
| RGB | rgb(84, 90, 136) |
| HSL | hsl(233, 24%, 43%) |
| OKLCH | oklch(48.2% 0.074 277.5) |
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 #545A88 | 6.57:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #545A88 | 3.19:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #545A88 text on white | 6.57:1 | AA | Lc 82.5 | Fine for body text |
| #545A88 text on black | 3.19:1 | AA large text | Lc -19.4 | 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#BABFD8
oklch(80.9% 0.036 276.6)
-
Step 400
400
#979EC5
oklch(70.7% 0.058 276.9)
-
Step 500
500
#7E85B6
oklch(63% 0.074 277.8)
-
Step 600
600
#686FA2
oklch(55.7% 0.08 277.5)
-
Step 700
700 (this color)
#545A88
oklch(48.2% 0.074 277.5)
-
Step 800
800
#474C71
oklch(42.8% 0.062 277.6)
-
Step 900
900
#3B3F5B
oklch(37.6% 0.048 277.5)
-
Step 950
950
#232535
oklch(27% 0.03 278.7)
#545A88 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) | #4B5F8A | 0.017 |
| Deuteranopia (no green cones) | #485B87 | 0.017 |
| Tritanopia (no blue cones) | #45636B | 0.065 |
| Achromatopsia (no color) | #5D5D5D | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545A88
#545A88
oklch(48.2% 0.074 277.5)
- #6A5E29
#6A5E29
oklch(48.2% 0.074 96.7)
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 #545A88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.022
- Dusky Blue #475F94 ΔE 0.026
- Twilight #4E518B ΔE 0.030
- Dusty Grape #545775 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.035
- Denim #3B638C ΔE 0.037
- YInMn Blue #415A77 ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.047
Use #545A88 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.