#3D77F3
Closest named color: Clear Blue (#247AFD). oklch(59.9% 0.196 263), rgb(61, 119, 243).
Aa
Black text reads best on this color (5.13:1).
About this color
#3D77F3 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.196 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.021 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #3D77F3 |
| RGB | rgb(61, 119, 243) |
| HSL | hsl(221, 88%, 60%) |
| OKLCH | oklch(59.9% 0.196 263) |
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 #3D77F3 | 4.09:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #3D77F3 | 5.13:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #3D77F3 text on white | 4.09:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #3D77F3 text on black | 5.13:1 | AA | Lc -34.1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
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)
#3D77F3
oklch(59.9% 0.196 263)
-
Step 600
600
#2966ED
oklch(55.5% 0.213 263)
-
Step 700
700
#1D54CF
oklch(49.1% 0.199 263)
-
Step 800
800
#1A46A7
oklch(42.8% 0.164 263)
-
Step 900
900
#1A3C84
oklch(37.7% 0.128 262.8)
-
Step 950
950
#10244D
oklch(27% 0.08 262.7)
#3D77F3 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) | #2486F7 | 0.037 |
| Deuteranopia (no green cones) | #0076F1 | 0.028 |
| Tritanopia (no blue cones) | #0095AA | 0.154 |
| Achromatopsia (no color) | #7D7D7D | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D77F3
#3D77F3
oklch(59.9% 0.196 263)
- #A37800
#A37800
oklch(59.9% 0.123 83.4)
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 #3D77F3, closest first.
No curated palette has a color within ΔE 0.04 of #3D77F3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.021
- Cerulean Blue #056EEE ΔE 0.040
- Royal Blue #4169E1 ΔE 0.042
- Cornflower #6A79F7 ΔE 0.049
- Neon Blue #4361EE ΔE 0.052
- Bright Blue #0165FC ΔE 0.059
- Dodger Blue #1E90FF ΔE 0.063
- Soft Blue #6488EA ΔE 0.065
Use #3D77F3 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.