#487FE1
Closest named color: Dark Sky Blue (#448EE4). oklch(60.8% 0.16 261), rgb(72, 127, 225).
Aa
Black text reads best on this color (5.39:1).
About this color
#487FE1 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.160 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.039 away. Black text reads best on it, at 5.39:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.39:1 |
| White text | 3.88:1 |
Values
| HEX | #487FE1 |
| RGB | rgb(72, 127, 225) |
| HSL | hsl(218, 72%, 58%) |
| OKLCH | oklch(60.8% 0.16 261) |
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 #487FE1 | 3.88:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #487FE1 | 5.39:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #487FE1 text on white | 3.88:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #487FE1 text on black | 5.39:1 | AA | Lc -35.6 | 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
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C2F4
oklch(81% 0.078 260.5)
-
Step 400
400
#73A0EE
oklch(70.6% 0.125 260.9)
-
Step 500
500 (this color)
#487FE1
oklch(60.8% 0.16 261)
-
Step 600
600
#336DD7
oklch(55.5% 0.174 261.2)
-
Step 700
700
#255BBB
oklch(49.2% 0.162 260.9)
-
Step 800
800
#204B97
oklch(42.8% 0.134 260.8)
-
Step 900
900
#1F3F78
oklch(37.6% 0.105 261)
-
Step 950
950
#132546
oklch(26.9% 0.066 261.5)
#487FE1 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) | #4F89E5 | 0.028 |
| Deuteranopia (no green cones) | #347BDF | 0.021 |
| Tritanopia (no blue cones) | #0096A5 | 0.130 |
| Achromatopsia (no color) | #818181 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #487FE1
#487FE1
oklch(60.8% 0.16 261)
- #A97900
#A97900
oklch(60.8% 0.126 80.8)
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 #487FE1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.039
- Soft Blue #6488EA ΔE 0.042
- Clear Blue #247AFD ΔE 0.052
- Water Blue #0E87CC ΔE 0.052
- Cornflower #6A79F7 ΔE 0.053
- Windows Blue #3778BF ΔE 0.057
- Royal Blue #4169E1 ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.058
Use #487FE1 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.