#5477B5
Closest named color: Windows Blue (#3778BF). oklch(57.1% 0.104 261.2), rgb(84, 119, 181).
Aa
Black text reads best on this color (4.68:1).
About this color
#5477B5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.104 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.030 away. Black text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.68:1 |
| White text | 4.48:1 |
Values
| HEX | #5477B5 |
| RGB | rgb(84, 119, 181) |
| HSL | hsl(218, 40%, 52%) |
| OKLCH | oklch(57.1% 0.104 261.2) |
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 #5477B5 | 4.48:1 | AA large text | Lc -76.5 | Fine for body text |
| Black text on #5477B5 | 4.68:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #5477B5 text on white | 4.48:1 | AA large text | Lc 71.0 | Content text, not long reading |
| #5477B5 text on black | 4.68:1 | AA | Lc -30.7 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B0C2E0
oklch(81% 0.047 260.7)
-
Step 400
400
#86A1D0
oklch(70.6% 0.076 261.3)
-
Step 500
500
#688AC4
oklch(63.2% 0.096 260.7)
-
Step 600
600 (this color)
#5477B5
oklch(57.1% 0.104 261.2)
-
Step 700
700
#416098
oklch(49.2% 0.097 261.5)
-
Step 800
800
#354E7B
oklch(42.6% 0.081 261.5)
-
Step 900
900
#2E4163
oklch(37.6% 0.064 261.5)
-
Step 950
950
#1B263A
oklch(26.9% 0.041 261.9)
#5477B5 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) | #5E7CB8 | 0.020 |
| Deuteranopia (no green cones) | #5373B4 | 0.011 |
| Tritanopia (no blue cones) | #20858D | 0.095 |
| Achromatopsia (no color) | #777777 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5477B5
#5477B5
oklch(57.1% 0.104 261.2)
- #977021
#977021
oklch(57% 0.105 80.8)
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 #5477B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.030
- Steel Blue #4682B4 ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.035
- Cool Blue #4984B8 ΔE 0.036
- French Blue #436BAD ΔE 0.042
- Off Blue #5684AE ΔE 0.042
- Dull Blue #49759C ΔE 0.042
- Stormy Blue #507B9C ΔE 0.045
Use #5477B5 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.