#487AE3
Closest named color: Royal Blue (#4169E1). oklch(59.9% 0.168 263.1), rgb(72, 122, 227).
Aa
Black text reads best on this color (5.16:1).
About this color
#487AE3 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.168 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.045 away. Black text reads best on it, at 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #487AE3 |
| RGB | rgb(72, 122, 227) |
| HSL | hsl(221, 73%, 59%) |
| OKLCH | oklch(59.9% 0.168 263.1) |
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 #487AE3 | 4.06:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #487AE3 | 5.16:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #487AE3 text on white | 4.06:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #487AE3 text on black | 5.16:1 | AA | Lc -34.2 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#C9DAF8
oklch(88.5% 0.045 261.9)
-
Step 300
300
#A5C1F7
oklch(80.9% 0.083 263.3)
-
Step 400
400
#759FF3
oklch(70.8% 0.132 263.2)
-
Step 500
500 (this color)
#487AE3
oklch(59.9% 0.168 263.1)
-
Step 600
600
#366BDD
oklch(55.6% 0.184 263)
-
Step 700
700
#2958BF
oklch(49% 0.17 263.1)
-
Step 800
800
#23499B
oklch(42.7% 0.141 263.1)
-
Step 900
900
#213E7B
oklch(37.7% 0.11 263.1)
-
Step 950
950
#142548
oklch(27.1% 0.069 263.1)
#487AE3 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) | #4486E7 | 0.031 |
| Deuteranopia (no green cones) | #2277E1 | 0.030 |
| Tritanopia (no blue cones) | #0092A3 | 0.136 |
| Achromatopsia (no color) | #7E7E7E | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #487AE3
#487AE3
oklch(59.9% 0.168 263.1)
- #A37800
#A37800
oklch(59.9% 0.123 83.4)
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 #487AE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.045
- Clear Blue #247AFD ΔE 0.045
- Cornflower #6A79F7 ΔE 0.050
- Soft Blue #6488EA ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.053
- Cerulean Blue #056EEE ΔE 0.056
- Windows Blue #3778BF ΔE 0.059
- Water Blue #0E87CC ΔE 0.061
Use #487AE3 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.