#3F89F6
Closest named color: Dodger Blue (#1E90FF). oklch(63.9% 0.179 258.3), rgb(63, 137, 246).
Aa
Black text reads best on this color (6.12:1).
About this color
#3F89F6 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.179 and its hue 258°. 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 6.12:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.12:1 |
| White text | 3.43:1 |
Values
| HEX | #3F89F6 |
| RGB | rgb(63, 137, 246) |
| HSL | hsl(216, 91%, 61%) |
| OKLCH | oklch(63.9% 0.179 258.3) |
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 #3F89F6 | 3.43:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #3F89F6 | 6.12:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #3F89F6 text on white | 3.43:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #3F89F6 text on black | 6.12:1 | AA | Lc -40.3 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBFA
oklch(88.6% 0.048 258)
-
Step 300
300
#9EC3F9
oklch(81% 0.087 257.7)
-
Step 400
400
#68A1F7
oklch(70.7% 0.14 258.4)
-
Step 500
500 (this color)
#3F89F6
oklch(63.9% 0.179 258.3)
-
Step 600
600
#166DE2
oklch(55.6% 0.195 258.3)
-
Step 700
700
#055AC4
oklch(49% 0.181 258.3)
-
Step 800
800
#0B4A9F
oklch(42.6% 0.151 258.4)
-
Step 900
900
#143F7E
oklch(37.7% 0.117 258.5)
-
Step 950
950
#0D264A
oklch(27.1% 0.074 257.9)
#3F89F6 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) | #5193FA | 0.032 |
| Deuteranopia (no green cones) | #2A83F4 | 0.023 |
| Tritanopia (no blue cones) | #00A3B3 | 0.140 |
| Achromatopsia (no color) | #8A8A8A | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F89F6
#3F89F6
oklch(63.9% 0.179 258.3)
- #B78000
#B78000
oklch(63.9% 0.133 78.4)
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 #3F89F6, 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 0.032
- Chefchaouen Blue #4895EF ΔE 0.037
- Soft Blue #6488EA ΔE 0.037
- Clear Blue #247AFD ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.052
- Cornflower #6A79F7 ΔE 0.053
- Water Blue #0E87CC ΔE 0.070
Use #3F89F6 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.