#477AD8
Closest named color: Windows Blue (#3778BF). oklch(59.1% 0.154 261.5), rgb(71, 122, 216).
Aa
Black text reads best on this color (5.04:1).
About this color
#477AD8 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.154 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.042 away. Black text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #477AD8 |
| RGB | rgb(71, 122, 216) |
| HSL | hsl(219, 65%, 56%) |
| OKLCH | oklch(59.1% 0.154 261.5) |
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 #477AD8 | 4.16:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #477AD8 | 5.04:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #477AD8 text on white | 4.16:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #477AD8 text on black | 5.04:1 | AA | Lc -33.3 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CBDAF3
oklch(88.5% 0.038 260.7)
-
Step 300
300
#A8C2EE
oklch(81% 0.069 260.9)
-
Step 400
400
#7AA0E6
oklch(70.6% 0.111 262.1)
-
Step 500
500
#5787DE
oklch(63% 0.142 261.4)
-
Step 600
600 (this color)
#477AD8
oklch(59.1% 0.154 261.5)
-
Step 700
700
#2F5CB1
oklch(49% 0.144 261.7)
-
Step 800
800
#284C8F
oklch(42.7% 0.119 261.5)
-
Step 900
900
#254072
oklch(37.7% 0.092 261.6)
-
Step 950
950
#162643
oklch(27.1% 0.058 261.5)
#477AD8 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) | #4D83DC | 0.026 |
| Deuteranopia (no green cones) | #3476D6 | 0.021 |
| Tritanopia (no blue cones) | #00909E | 0.126 |
| Achromatopsia (no color) | #7C7C7C | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #477AD8
#477AD8
oklch(59.1% 0.154 261.5)
- #A27500
#A27500
oklch(59.2% 0.122 81.7)
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 #477AD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.042
- Royal Blue #4169E1 ΔE 0.049
- Water Blue #0E87CC ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.053
- Soft Blue #6488EA ΔE 0.057
- Clear Blue #247AFD ΔE 0.059
- Cool Blue #4984B8 ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.063
Use #477AD8 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.