#4475D3
Closest named color: Windows Blue (#3778BF). oklch(57.6% 0.154 262), rgb(68, 117, 211).
Aa
Black text reads best on this color (4.73:1).
About this color
#4475D3 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.154 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.036 away. Black text reads best on it, at 4.73:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #4475D3 |
| RGB | rgb(68, 117, 211) |
| HSL | hsl(219, 62%, 55%) |
| OKLCH | oklch(57.6% 0.154 262) |
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 #4475D3 | 4.43:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #4475D3 | 4.73:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #4475D3 text on white | 4.43:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #4475D3 text on black | 4.73:1 | AA | Lc -31.2 | 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
#A8C1EE
oklch(80.8% 0.07 262.1)
-
Step 400
400
#7AA0E6
oklch(70.6% 0.111 262.1)
-
Step 500
500
#5987DF
oklch(63.2% 0.142 262.2)
-
Step 600
600 (this color)
#4475D3
oklch(57.6% 0.154 262)
-
Step 700
700
#315CB1
oklch(49.1% 0.144 262.3)
-
Step 800
800
#294C8F
oklch(42.8% 0.118 261.9)
-
Step 900
900
#254072
oklch(37.7% 0.092 261.6)
-
Step 950
950
#162643
oklch(27.1% 0.058 261.5)
#4475D3 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) | #477FD7 | 0.027 |
| Deuteranopia (no green cones) | #2D72D1 | 0.022 |
| Tritanopia (no blue cones) | #008B9A | 0.125 |
| Achromatopsia (no color) | #787878 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4475D3
#4475D3
oklch(57.6% 0.154 262)
- #9C7100
#9C7100
oklch(57.7% 0.119 82)
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 #4475D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.036
- Royal Blue #4169E1 ΔE 0.040
- Water Blue #0E87CC ΔE 0.056
- Cerulean Blue #056EEE ΔE 0.058
- French Blue #436BAD ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.063
- Mid Blue #276AB3 ΔE 0.063
- Clear Blue #247AFD ΔE 0.065
Use #4475D3 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.