#497EE3
Closest named color: Dark Sky Blue (#448EE4). oklch(60.8% 0.163 261.9), rgb(73, 126, 227).
Aa
Black text reads best on this color (5.37:1).
About this color
#497EE3 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.163 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.042 away. Black text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #497EE3 |
| RGB | rgb(73, 126, 227) |
| HSL | hsl(219, 73%, 59%) |
| OKLCH | oklch(60.8% 0.163 261.9) |
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 #497EE3 | 3.90:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #497EE3 | 5.37:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #497EE3 text on white | 3.90:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #497EE3 text on black | 5.37:1 | AA | Lc -35.5 | 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
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A5C1F5
oklch(80.9% 0.08 262.6)
-
Step 400
400
#74A0F0
oklch(70.8% 0.127 261.7)
-
Step 500
500 (this color)
#497EE3
oklch(60.8% 0.163 261.9)
-
Step 600
600
#346CD9
oklch(55.5% 0.178 262)
-
Step 700
700
#275ABD
oklch(49.2% 0.166 261.9)
-
Step 800
800
#214A99
oklch(42.7% 0.138 261.8)
-
Step 900
900
#203F79
oklch(37.8% 0.106 261.6)
-
Step 950
950
#132547
oklch(26.9% 0.068 261.9)
#497EE3 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) | #4C88E7 | 0.027 |
| Deuteranopia (no green cones) | #2F7AE1 | 0.025 |
| Tritanopia (no blue cones) | #0095A5 | 0.132 |
| Achromatopsia (no color) | #818181 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497EE3
#497EE3
oklch(60.8% 0.163 261.9)
- #A77900
#A77900
oklch(60.6% 0.125 81.9)
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 #497EE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.042
- Soft Blue #6488EA ΔE 0.042
- Clear Blue #247AFD ΔE 0.049
- Cornflower #6A79F7 ΔE 0.050
- Royal Blue #4169E1 ΔE 0.055
- Water Blue #0E87CC ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.058
- Windows Blue #3778BF ΔE 0.060
Use #497EE3 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.