#3A77E6
Closest named color: Royal Blue (#4169E1). oklch(58.9% 0.18 261.2), rgb(58, 119, 230).
Aa
Black text reads best on this color (4.96:1).
About this color
#3A77E6 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.180 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.035 away. Black text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.96:1 |
| White text | 4.23:1 |
Values
| HEX | #3A77E6 |
| RGB | rgb(58, 119, 230) |
| HSL | hsl(219, 77%, 56%) |
| OKLCH | oklch(58.9% 0.18 261.2) |
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 #3A77E6 | 4.23:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #3A77E6 | 4.96:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #3A77E6 text on white | 4.23:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #3A77E6 text on black | 4.96:1 | AA | Lc -32.9 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF8
oklch(88.5% 0.045 261.9)
-
Step 300
300
#A3C2F6
oklch(81% 0.081 260.6)
-
Step 400
400
#72A0F1
oklch(70.7% 0.129 261.1)
-
Step 500
500
#4D86EC
oklch(63.2% 0.165 261.1)
-
Step 600
600 (this color)
#3A77E6
oklch(58.9% 0.18 261.2)
-
Step 700
700
#235ABE
oklch(49.1% 0.168 261.2)
-
Step 800
800
#1F4A99
oklch(42.7% 0.138 261.3)
-
Step 900
900
#1E3F7A
oklch(37.7% 0.108 261)
-
Step 950
950
#122547
oklch(26.9% 0.068 261.1)
#3A77E6 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) | #3783EA | 0.031 |
| Deuteranopia (no green cones) | #0074E4 | 0.029 |
| Tritanopia (no blue cones) | #0091A3 | 0.141 |
| Achromatopsia (no color) | #7B7B7B | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A77E6
#3A77E6
oklch(58.9% 0.18 261.2)
- #A17400
#A17400
oklch(58.9% 0.121 81.5)
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 #3A77E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.035
- Clear Blue #247AFD ΔE 0.036
- Cerulean Blue #056EEE ΔE 0.039
- Neon Blue #4361EE ΔE 0.054
- Cornflower #6A79F7 ΔE 0.059
- Windows Blue #3778BF ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.064
- Water Blue #0E87CC ΔE 0.065
Use #3A77E6 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.