#3489EC
Closest named color: Dark Sky Blue (#448EE4). oklch(62.9% 0.169 254.7), rgb(52, 137, 236).
Aa
Black text reads best on this color (5.93:1).
About this color
#3489EC is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.169 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.023 away. Black text reads best on it, at 5.93:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.93:1 |
| White text | 3.53:1 |
Values
| HEX | #3489EC |
| RGB | rgb(52, 137, 236) |
| HSL | hsl(212, 83%, 56%) |
| OKLCH | oklch(62.9% 0.169 254.7) |
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 #3489EC | 3.53:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #3489EC | 5.93:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #3489EC text on white | 3.53:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #3489EC text on black | 5.93:1 | AA | Lc -39.2 | 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
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C5DBF8
oklch(88.4% 0.047 255.4)
-
Step 300
300
#9CC4F6
oklch(80.9% 0.083 254.3)
-
Step 400
400
#64A3F1
oklch(70.7% 0.132 254.6)
-
Step 500
500 (this color)
#3489EC
oklch(62.9% 0.169 254.7)
-
Step 600
600
#0071DA
oklch(55.6% 0.182 254.8)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D98
oklch(42.6% 0.139 254.8)
-
Step 900
900
#0D417A
oklch(37.7% 0.11 254.6)
-
Step 950
950
#0B2748
oklch(27.2% 0.07 254.7)
#3489EC 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) | #5891F0 | 0.039 |
| Deuteranopia (no green cones) | #3680EA | 0.023 |
| Tritanopia (no blue cones) | #00A1AF | 0.129 |
| Achromatopsia (no color) | #888888 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3489EC
#3489EC
oklch(62.9% 0.169 254.7)
- #B77B00
#B77B00
oklch(62.9% 0.133 74.9)
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 #3489EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.023
- Dodger Blue #1E90FF ΔE 0.031
- Chefchaouen Blue #4895EF ΔE 0.037
- Soft Blue #6488EA ΔE 0.042
- Clear Blue #247AFD ΔE 0.051
- Water Blue #0E87CC ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.056
- Cornflower #6A79F7 ΔE 0.064
Use #3489EC 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.