#3A77F9
Closest named color: Clear Blue (#247AFD). oklch(60.3% 0.205 262.9), rgb(58, 119, 249).
Aa
Black text reads best on this color (5.18:1).
About this color
#3A77F9 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.205 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.014 away. Black text reads best on it, at 5.18:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.18:1 |
| White text | 4.04:1 |
Values
| HEX | #3A77F9 |
| RGB | rgb(58, 119, 249) |
| HSL | hsl(221, 94%, 60%) |
| OKLCH | oklch(60.3% 0.205 262.9) |
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 #3A77F9 | 4.04:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #3A77F9 | 5.18:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #3A77F9 text on white | 4.04:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #3A77F9 text on black | 5.18:1 | AA | Lc -34.5 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6D9EFF
oklch(70.8% 0.152 262.8)
-
Step 500
500 (this color)
#3A77F9
oklch(60.3% 0.205 262.9)
-
Step 600
600
#2465F3
oklch(55.6% 0.223 262.8)
-
Step 700
700
#1852D3
oklch(49% 0.207 262.9)
-
Step 800
800
#1645AB
oklch(42.8% 0.171 262.8)
-
Step 900
900
#183B87
oklch(37.6% 0.134 263)
-
Step 950
950
#0F244F
oklch(27.1% 0.084 262.6)
#3A77F9 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) | #1387FE | 0.040 |
| Deuteranopia (no green cones) | #0076F6 | 0.026 |
| Tritanopia (no blue cones) | #0097AD | 0.160 |
| Achromatopsia (no color) | #7E7E7E | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A77F9
#3A77F9
oklch(60.3% 0.205 262.9)
- #A57900
#A57900
oklch(60.4% 0.124 83)
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 #3A77F9, closest first.
No curated palette has a color within ΔE 0.04 of #3A77F9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.014
- Cerulean Blue #056EEE ΔE 0.041
- Royal Blue #4169E1 ΔE 0.047
- Cornflower #6A79F7 ΔE 0.051
- Neon Blue #4361EE ΔE 0.053
- Bright Blue #0165FC ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.061
- Soft Blue #6488EA ΔE 0.069
Use #3A77F9 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.