#3989F3
Closest named color: Dodger Blue (#1E90FF). oklch(63.5% 0.177 256.8), rgb(57, 137, 243).
Aa
Black text reads best on this color (6.04:1).
About this color
#3989F3 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.177 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.024 away. Black text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #3989F3 |
| RGB | rgb(57, 137, 243) |
| HSL | hsl(214, 89%, 59%) |
| OKLCH | oklch(63.5% 0.177 256.8) |
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 #3989F3 | 3.47:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #3989F3 | 6.04:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #3989F3 text on white | 3.47:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #3989F3 text on black | 6.04:1 | AA | Lc -39.9 | 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 500.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9DC3F8
oklch(80.9% 0.086 256.8)
-
Step 400
400
#65A2F5
oklch(70.7% 0.138 256.5)
-
Step 500
500 (this color)
#3989F3
oklch(63.5% 0.177 256.8)
-
Step 600
600
#076EE0
oklch(55.5% 0.192 256.9)
-
Step 700
700
#005CC0
oklch(49.1% 0.174 256.9)
-
Step 800
800
#034B9D
oklch(42.6% 0.148 256.9)
-
Step 900
900
#10407D
oklch(37.7% 0.115 256.7)
-
Step 950
950
#0C2649
oklch(27% 0.072 256.9)
#3989F3 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) | #5393F7 | 0.036 |
| Deuteranopia (no green cones) | #2D82F1 | 0.021 |
| Tritanopia (no blue cones) | #00A2B2 | 0.136 |
| Achromatopsia (no color) | #8A8A8A | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3989F3
#3989F3
oklch(63.5% 0.177 256.8)
- #B77E00
#B77E00
oklch(63.5% 0.133 77)
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 #3989F3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.024
- Dark Sky Blue #448EE4 ΔE 0.029
- Chefchaouen Blue #4895EF ΔE 0.037
- Soft Blue #6488EA ΔE 0.040
- Clear Blue #247AFD ΔE 0.046
- Cornflower Blue #6495ED ΔE 0.055
- Cornflower #6A79F7 ΔE 0.058
- Water Blue #0E87CC ΔE 0.064
Use #3989F3 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.