#545C9C
Closest named color: Dusky Blue (#475F94). oklch(49.8% 0.102 276.6), rgb(84, 92, 156).
Aa
White text reads best on this color (6.19:1).
About this color
#545C9C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.102 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.024 away. White text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.38:1 |
| White text | 6.19:1 |
Values
| HEX | #545C9C |
| RGB | rgb(84, 92, 156) |
| HSL | hsl(233, 30%, 47%) |
| OKLCH | oklch(49.8% 0.102 276.6) |
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 #545C9C | 6.19:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #545C9C | 3.38:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #545C9C text on white | 6.19:1 | AA | Lc 80.8 | Fine for body text |
| #545C9C text on black | 3.38:1 | AA large text | Lc -21.0 | 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 700.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8EC
oklch(88.5% 0.028 276.8)
-
Step 300
300
#B8BEE1
oklch(80.8% 0.05 277.6)
-
Step 400
400
#939DD2
oklch(70.8% 0.078 275.9)
-
Step 500
500
#7A83C6
oklch(63% 0.101 277.2)
-
Step 600
600
#636CB3
oklch(55.6% 0.11 276.7)
-
Step 700
700 (this color)
#545C9C
oklch(49.8% 0.102 276.6)
-
Step 800
800
#434A7D
oklch(42.7% 0.085 276.3)
-
Step 900
900
#393E64
oklch(37.7% 0.065 277.1)
-
Step 950
950
#21243B
oklch(26.9% 0.043 277.4)
#545C9C 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) | #44649E | 0.028 |
| Deuteranopia (no green cones) | #3E5E9B | 0.028 |
| Tritanopia (no blue cones) | #3B6974 | 0.090 |
| Achromatopsia (no color) | #616161 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545C9C
#545C9C
oklch(49.8% 0.102 276.6)
- #746201
#746201
oklch(49.9% 0.102 96.5)
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 #545C9C, closest first.
No curated palette has a color within ΔE 0.04 of #545C9C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.037
- Twilight #4E518B ΔE 0.039
- French Blue #436BAD ΔE 0.046
- Dusk #4E5481 ΔE 0.047
- Denim #3B638C ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.059
- Mid Blue #276AB3 ΔE 0.061
Use #545C9C 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.