#4E87E3
Closest named color: Dark Sky Blue (#448EE4). oklch(62.9% 0.152 259.5), rgb(78, 135, 227).
Aa
Black text reads best on this color (5.89:1).
About this color
#4E87E3 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.152 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.019 away. Black text reads best on it, at 5.89:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #4E87E3 |
| RGB | rgb(78, 135, 227) |
| HSL | hsl(217, 73%, 60%) |
| OKLCH | oklch(62.9% 0.152 259.5) |
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 #4E87E3 | 3.56:1 | AA large text | Lc -68.4 | Content text, not long reading |
| Black text on #4E87E3 | 5.89:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #4E87E3 text on white | 3.56:1 | AA large text | Lc 62.9 | Content text, not long reading |
| #4E87E3 text on black | 5.89:1 | AA | Lc -38.8 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF9
oklch(93.7% 0.021 259.2)
-
Step 200
200
#C9DAF5
oklch(88.4% 0.042 259.6)
-
Step 300
300
#A5C2F1
oklch(80.9% 0.074 260)
-
Step 400
400
#74A1EA
oklch(70.7% 0.118 259.8)
-
Step 500
500 (this color)
#4E87E3
oklch(62.9% 0.152 259.5)
-
Step 600
600
#326FD2
oklch(55.5% 0.165 259.7)
-
Step 700
700
#255DB6
oklch(49.2% 0.153 259.5)
-
Step 800
800
#204C93
oklch(42.7% 0.127 259.6)
-
Step 900
900
#1F4075
oklch(37.7% 0.099 259.5)
-
Step 950
950
#132645
oklch(27.1% 0.063 259.7)
#4E87E3 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) | #5D8FE7 | 0.028 |
| Deuteranopia (no green cones) | #4681E1 | 0.019 |
| Tritanopia (no blue cones) | #009CAA | 0.123 |
| Achromatopsia (no color) | #888888 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E87E3
#4E87E3
oklch(62.9% 0.152 259.5)
- #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 #4E87E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.019
- Soft Blue #6488EA ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.038
- Cornflower Blue #6495ED ΔE 0.047
- Dodger Blue #1E90FF ΔE 0.049
- Water Blue #0E87CC ΔE 0.053
- Cornflower #6A79F7 ΔE 0.056
- Clear Blue #247AFD ΔE 0.064
Use #4E87E3 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.