#4D77D5
Closest named color: Windows Blue (#3778BF). oklch(58.6% 0.151 264.2), rgb(77, 119, 213).
Aa
Black text reads best on this color (4.91:1).
About this color
#4D77D5 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.151 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.041 away. Black text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #4D77D5 |
| RGB | rgb(77, 119, 213) |
| HSL | hsl(221, 62%, 57%) |
| OKLCH | oklch(58.6% 0.151 264.2) |
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 #4D77D5 | 4.27:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #4D77D5 | 4.91:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #4D77D5 text on white | 4.27:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #4D77D5 text on black | 4.91:1 | AA | Lc -32.4 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F3
oklch(88.4% 0.038 265.8)
-
Step 300
300
#ABC1EE
oklch(81% 0.068 264.5)
-
Step 400
400
#7E9FE5
oklch(70.6% 0.11 264.5)
-
Step 500
500
#5E86DD
oklch(63.1% 0.139 264.2)
-
Step 600
600 (this color)
#4D77D5
oklch(58.6% 0.151 264.2)
-
Step 700
700
#375BB0
oklch(49.1% 0.142 264.5)
-
Step 800
800
#2D4B8E
oklch(42.7% 0.117 264)
-
Step 900
900
#283F71
oklch(37.6% 0.091 264)
-
Step 950
950
#182542
oklch(26.9% 0.057 264.6)
#4D77D5 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) | #4A81D9 | 0.026 |
| Deuteranopia (no green cones) | #3475D3 | 0.024 |
| Tritanopia (no blue cones) | #008C9B | 0.127 |
| Achromatopsia (no color) | #7A7A7A | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D77D5
#4D77D5
oklch(58.6% 0.151 264.2)
- #9D7500
#9D7500
oklch(58.6% 0.12 84.6)
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 #4D77D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.041
- Royal Blue #4169E1 ΔE 0.045
- Water Blue #0E87CC ΔE 0.057
- Soft Blue #6488EA ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.063
- Cornflower #6A79F7 ΔE 0.063
- Cool Blue #4984B8 ΔE 0.063
Use #4D77D5 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.