#4586EE
Closest named color: Dark Sky Blue (#448EE4). oklch(63% 0.17 259.4), rgb(69, 134, 238).
Aa
Black text reads best on this color (5.89:1).
About this color
#4586EE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.170 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.028 away. Black text reads best on it, at 5.89:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #4586EE |
| RGB | rgb(69, 134, 238) |
| HSL | hsl(217, 83%, 60%) |
| OKLCH | oklch(63% 0.17 259.4) |
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 #4586EE | 3.56:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #4586EE | 5.89:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #4586EE text on white | 3.56:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #4586EE text on black | 5.89:1 | AA | Lc -38.9 | 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
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C7DAF8
oklch(88.4% 0.046 259.5)
-
Step 300
300
#A1C2F7
oklch(80.9% 0.084 259.8)
-
Step 400
400
#6DA1F3
oklch(70.8% 0.133 259.2)
-
Step 500
500 (this color)
#4586EE
oklch(63% 0.17 259.4)
-
Step 600
600
#266DDD
oklch(55.6% 0.185 259.6)
-
Step 700
700
#185BC0
oklch(49.2% 0.172 259.3)
-
Step 800
800
#174B9B
oklch(42.8% 0.142 259.3)
-
Step 900
900
#193F7B
oklch(37.6% 0.111 259.3)
-
Step 950
950
#102648
oklch(27.1% 0.069 258.9)
#4586EE 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) | #5290F2 | 0.031 |
| Deuteranopia (no green cones) | #3280EC | 0.023 |
| Tritanopia (no blue cones) | #009EAE | 0.135 |
| Achromatopsia (no color) | #888888 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4586EE
#4586EE
oklch(63% 0.17 259.4)
- #B27E00
#B27E00
oklch(62.9% 0.13 79.6)
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 #4586EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.028
- Soft Blue #6488EA ΔE 0.032
- Dodger Blue #1E90FF ΔE 0.036
- Chefchaouen Blue #4895EF ΔE 0.040
- Clear Blue #247AFD ΔE 0.048
- Cornflower #6A79F7 ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.054
- Water Blue #0E87CC ΔE 0.062
Use #4586EE 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.