#4B7BD7
Closest named color: Windows Blue (#3778BF). oklch(59.4% 0.15 262.1), rgb(75, 123, 215).
Aa
Black text reads best on this color (5.11:1).
About this color
#4B7BD7 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.150 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.043 away. Black text reads best on it, at 5.11:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #4B7BD7 |
| RGB | rgb(75, 123, 215) |
| HSL | hsl(219, 64%, 57%) |
| OKLCH | oklch(59.4% 0.15 262.1) |
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 #4B7BD7 | 4.10:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #4B7BD7 | 5.11:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #4B7BD7 text on white | 4.10:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #4B7BD7 text on black | 5.11:1 | AA | Lc -33.7 | 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 500.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF5
oklch(88.6% 0.041 262.3)
-
Step 300
300
#A7C1F1
oklch(80.8% 0.074 262.5)
-
Step 400
400
#78A0EA
oklch(70.7% 0.118 262.1)
-
Step 500
500 (this color)
#4B7BD7
oklch(59.4% 0.15 262.1)
-
Step 600
600
#3B6ED1
oklch(55.6% 0.163 262)
-
Step 700
700
#2D5BB5
oklch(49% 0.152 262.1)
-
Step 800
800
#264B93
oklch(42.7% 0.126 262.1)
-
Step 900
900
#233F75
oklch(37.6% 0.099 262.1)
-
Step 950
950
#152544
oklch(26.8% 0.062 262.4)
#4B7BD7 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) | #5084DB | 0.025 |
| Deuteranopia (no green cones) | #3977D5 | 0.021 |
| Tritanopia (no blue cones) | #00909E | 0.125 |
| Achromatopsia (no color) | #7D7D7D | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B7BD7
#4B7BD7
oklch(59.4% 0.15 262.1)
- #A27600
#A27600
oklch(59.4% 0.122 82.4)
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 #4B7BD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.043
- Water Blue #0E87CC ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.051
- Royal Blue #4169E1 ΔE 0.053
- Soft Blue #6488EA ΔE 0.053
- Cool Blue #4984B8 ΔE 0.059
- Cornflower #6A79F7 ΔE 0.062
- Steel Blue #4682B4 ΔE 0.062
Use #4B7BD7 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.